Practice test exam revision questions on Human reproduction, genetics, inheritance, DNA Doc Brown's KS3 biology KS3 science practice questions for AQA Edexcel OCR KS3 biology KS3 science biology courses

Which cell transfers genetic information from the mother to the offspring? [7b-1]
1. cell 4
2. cell 5
3. cell 3
4. cell 1
Which cell transfers genetic information from the father to the offspring? [7b-2]
1. cell 4
2. cell 5
3. cell 3
4. cell 1
Which cell transports oxygen to the placenta for the unborn child? [7b-3]
1. cell 4
2. cell 5
3. cell 3
4. cell 1
Which type of cell moves an egg cell (ovum) along the fallopian tube (oviduct)? [7b-4]
1. cell 4
2. cell 5
3. cell 3
4. cell 1
The diagram above shows the main features of the human female sex cell (egg or ovum), the male sex cell (sperm) and a ciliated cell (with hairs or cilia). Which part of the sperm cell controls what it does? [7b-5]
1. nucleus
2. head
3. membrane
4. tail
The diagram above shows the main features of the human female sex cell (egg or ovum), the male sex cell (sperm) and a ciliated cell (with hairs or cilia). Which part of the sperm cell burrows into the ovum? [7b-6]
1. nucleus
2. head
3. membrane
4. tail
The diagram above shows the main features of the human female sex cell (egg or ovum), the male sex cell (sperm) and a ciliated cell (with hairs or cilia). Which part of the sperm cell encloses all the cytoplasm? [7b-7]
1. nucleus
2. head
3. membrane
4. tail
The diagram above shows the main features of the human female sex cell (egg or ovum), the male sex cell (sperm) and a ciliated cell (with hairs or cilia). Which part of the sperm cell enables it to swim to the ovum? [7b-8]
1. nucleus
2. head
3. membrane
4. tail
Which of the following connects with the word fertilisation? [7b-9]
1. the joining of the two nuclei from a sperm cell and an ovum (egg cell)
2. embryo cells rapidly dividing
3. minerals passing through the placenta to the foetus
4. oxygen passing through the placenta to the foetus
Which of the following connects with the word growth? [7b-10]
1. the joining of the two nuclei from a sperm cell and an ovum (egg cell)
2. embryo cells rapidly dividing
3. minerals passing through the placenta to the foetus
4. oxygen passing through the placenta to the foetus
Which of the following connects with the word nutrition? [7b-11]
1. the joining of the two nuclei from a sperm cell and an ovum (egg cell)
2. embryo cells rapidly dividing
3. minerals passing through the placenta to the foetus
4. oxygen passing through the placenta to the foetus
Which of the following connects with the word respiration? [7b-12]
1. the joining of the two nuclei from a sperm cell and an ovum (egg cell)
2. embryo cells rapidly dividing
3. minerals passing through the placenta to the foetus
4. oxygen passing through the placenta to the foetus
Which part corresponds to the umbilical cord? [7b-13]
1. part W
2. part R
3. part Y
4. part P
5. part Q
Which part corresponds to the uterus wall (womb)? [7b-14]
1. part W
2. part R
3. part Y
4. part P
5. part Q
Which part corresponds to the placenta? [7b-15]
1. part W
2. part R
3. part Y
4. part P
5. part Q
Which part corresponds to the amniotic fluid? [7b-16]
1. part W
2. part R
3. part Y
4. part P
5. part Q
Which part corresponds to the amnion membrane? [7b-16]
1. part W
2. part R
3. part Y
4. part P
5. part Q
Which part corresponds to the ovary? [7b-18]
1. part U
2. part N
3. part Z
4. part S
5. part R
Which part corresponds to the cervix? [7b-19]
1. part U
2. part N
3. part Z
4. part S
5. part R
Which part corresponds to the vagina? [7b-20]
1. part U
2. part N
3. part Z
4. part S
5. part T
Which part corresponds to the oviduct (fallopian tube)? [7b-21]
1. part U
2. part N
3. part Z
4. part S
5. part R
Which part corresponds to the uterus organ? [7b-22]
1. part U
2. part N
3. part Z
4. part S
5. part R
Which part corresponds to the uterus lining? [7b-23]
1. part U
2. part N
3. part Z
4. part S
5. part T
Where does the female egg cell get fertilised? [7b-24]
1. oviduct
2. ovary
3. uterus
4. vagina
Where are the eggs stored?? [7b-25]
1. oviduct
2. ovary
3. uterus
4. vagina
Where does the embryo develop into the foetus? [7b-26]
1. oviduct
2. ovary
3. uterus
4. vagina
Where is sperm deposited before fertilising the egg cell? [7b-27]
1. oviduct
2. ovary
3. uterus
4. vagina
Where does the fertilised egg cell (embryo) implant itself? [7b-28]
1. oviduct
2. ovary
3. uterus lining
4. vagina
Where are food and waste materials exchanged between the mother and baby? [7b-29]
1. placenta
2. amniotic fluid
3. uterus
4. umbilical cord
What protects the baby from 'knocks' and keeps it warm? [7b-30]
1. placenta
2. amniotic fluid
3. uterus
4. umbilical cord
What is the name of the organ where the baby develops? [7b-31]
1. placenta
2. amniotic fluid
3. uterus
4. umbilical cord
Which has blood vessels carrying food and oxygen directly to the unborn baby? [7b-32]
1. placenta
2. amniotic fluid
3. uterus
4. umbilical cord
Which phrase matches 'ovulation'? [7b-33]
1. the release of the egg cell (ovum) from the ovary
2. when the embryo beds itself into the uterus lining to develop into the foetus
3. the breaking down of the uterus lining with bleeding in the menstrual cycle
4. what the uterus wall does before childbirth
Which phrase matches 'implantation'? [7b-34]
1. the release of the egg cell (ovum) from the ovary
2. when the embryo beds itself into the uterus lining to develop into the foetus
3. the breaking down of the uterus lining with bleeding in the menstrual cycle
4. what the uterus wall does before childbirth
Which phrase matches 'menstruation'? [7b-35]
1. the release of the egg cell (ovum) from the ovary
2. when the embryo beds itself into the uterus lining to develop into the foetus
3. the breaking down of the uterus lining with bleeding
4. what the uterus wall does before childbirth
Which phrase matches 'contraction'? [7b-36]
1. the release of the egg cell (ovum) from the ovary
2. when the embryo beds itself into the uterus lining to develop into the foetus
3. the breaking down of the uterus lining with bleeding in the menstrual cycle
4. what the uterus wall does before childbirth
Which of the following matches the word penis? [7b-37]
1. deposits the sperm into the female's vagina
2. where sperm are made
3. moves sperm from the testis to the penis
4. the sac containing the testis
Which of the following matches the word testis? [7b-38]
1. deposits the sperm into the female's vagina
2. where sperm are made
3. moves sperm to the penis
4. stores urine
Which of the following matches the word sperm duct? [7b-39]
1. deposits the sperm into the female's vagina
2. where sperm are made
3. moves sperm from the testis to the penis
4. the sac containing the testis
Which of the following matches the word scrotum? [7b-40]
1. deposits the sperm into the female's vagina
2. where sperm are made
3. moves sperm from the testis to the penis
4. the sac containing the testis
Which phrase matches the word ovum? [7b-41]
1. female sex cell
2. initially formed by the fusion of the female and male sex cells
3. offspring with recognisable animal features
4. male sex cell
Which phrase matches the word embryo? [7b-42]
1. female sex cell
2. initially formed by the fusion of the female and male sex cells
3. offspring with recognisable animal features
4. male sex cell
Which phrase matches the word foetus? [7b-43]
1. female sex cell
2. initially formed by the fusion of the female and male sex cells
3. offspring with recognisable animal features
4. male sex cell
Which phrase matches the word sperm? [7b-44]
1. female sex cell
2. initially formed by the fusion of the female and male sex cells
3. offspring with recognisable animal features
4. male sex cell
Which of the following is TRUE? [7b-45]
1. Girls are born with thousands of unripened egg cells in their ovaries.
2. Adult males produce and store all their sperm in adolescence.
3. The female egg cell is smaller than most other specialised cells so it can easily move down the fallopian tube to meet a male sperm cell.
4. The female menstrual cycle takes about 9 months.
Which of the following is TRUE? [7b-46]
1. Girls are born with just a few unripened egg cells in their ovaries.
2. Adult males continually produce sperm.
3. The female egg cell is smaller than most other specialised cells so it can easily move down the fallopian tube to meet a male sperm cell.
4. The female menstrual cycle takes about 9 months.
Which of the following is TRUE? [7b-47]
1. Girls are born with just a few unripened egg cells in their ovaries.
2. Adult males produce and store all their sperm in puberty.
3. The female egg cell is larger than most other specialised cells because it has extra food for growth and development after fertilisation.
4. The female menstrual cycle takes about 9 months.
Which of the following is TRUE? [7b-48]
1. Girls are born with just a few unripened egg cells in their ovaries.
2. Adult males produce and store all their sperm in puberty.
3. The female egg cell is smaller than most other specialised cells so it can easily move down the fallopian tube to meet a male sperm cell.
4. The female menstrual cycle takes about 1 month.
Which of the following phrases best matches the word adaptation? [9a-1]
1. an evolved characteristic of an organism that helps it survive in its habitat
2. to form the next generation in an organism population
3. the differences that naturally occur in an organism population due to different gene combinations
4. a change in the genetic information before the next generation is produced
Which of the following phrases best matches the word reproduction? [9a-2]
1. an evolved characteristic of an organism that helps it survive in its habitat
2. to form the next generation in an organism population
3. the differences that naturally occur in an organism population due to different gene combinations
4. a change in the genetic information before the next generation is produced
Which of the following phrases best matches the word variation? [9a-3]
1. an evolved characteristic of an organism that helps it survive in its habitat
2. to form the next generation in an organism population
3. the differences that naturally occur in an organism population due to different gene combinations
4. a change in the genetic information before the next generation is produced
Which of the following phrases best matches the word mutation? [9a-4]
1. an evolved characteristic of an organism that helps it survive in its habitat
2. to form the next generation in an organism population
3. the differences that naturally occur in an organism population due to different gene combinations
4. a change in the genetic information before the next generation is produced
Your physical features and activities are the result of several factors. You can genetically inherit characteristics from your parents genes or they can be due to your 'environment' e.g. 'habitat' and 'life style'. Which of the following factors applies to whether you have freckles? [9a-5]
1. only what is genetically inherited from your parents genes
2. only environmental factors
3. a combination of genetic and environmental factors
4. nothing to do with genetic or environmental factors
Your physical features and activities are the result of several factors. You can genetically inherit characteristics from your parents genes or they can be due to your 'environment' e.g. 'habitat' and 'life style'. Which of the following factors applies to your taste in music? [9a-6]
1. only what is genetically inherited from your parents genes
2. only environmental factors
3. a combination of genetic and environmental factors
4. nothing to do with genetic or environmental factors
Your physical features and activities are the result of several factors. You can genetically inherit characteristics from your parents genes or they can be due to your 'environment' e.g. 'habitat' and 'life style'. Which of the following factors applies to your musical ability? [9a-7]
1. only what is genetically inherited from your parents genes
2. only environmental factors
3. a combination of genetic and environmental factors
4. nothing to do with genetic or environmental factors
Your physical features and activities are the result of several factors. You can genetically inherit characteristics from your parents genes or they can be due to your 'environment' e.g. 'habitat' and 'life style'. Which of the following factors applies to your sporting ability? [9a-8]
1. only what is genetically inherited from your parents genes
2. only environmental factors
3. nothing to do with genetic or environmental factors
4. a combination of genetic and environmental factors
You get your __(1)__ from your parents __(2)__ which are contained in the __(3)__ of __(4)__. The female's genes are passed on in the __(5)__ and the male genes are passed on in the __(6)__.

Choose word from: cells, characteristics, eggs, genes, nucleus, sperm
Which of the following words corresponds to __(1)__? [9a-9]
1. characteristics
2. genes
3. nucleus
4. cells
5. eggs
6. sperm
You get your __(1)__ from your parents __(2)__ which are contained in the __(3)__ of __(4)__. The female's genes are passed on in the __(5)__ and the male genes are passed on in the __(6)__.

Choose word from: cells, characteristics, eggs, genes, nucleus, sperm
Which of the following words corresponds to __(2)__? [9a-10]
1. characteristics
2. genes
3. nucleus
4. cells
5. eggs
6. sperm
You get your __(1)__ from your parents __(2)__ which are contained in the __(3)__ of __(4)__. The female's genes are passed on in the __(5)__ and the male genes are passed on in the __(6)__.

Choose word from: cells, characteristics, eggs, genes, nucleus, sperm
Which of the following words corresponds to __(3)__? [9a-11]
1. characteristics
2. genes
3. nucleus
4. cells
5. eggs
6. sperm
You get your __(1)__ from your parents __(2)__ which are contained in the __(3)__ of __(4)__. The female's genes are passed on in the __(5)__ and the male genes are passed on in the __(6)__.

Choose word from: cells, characteristics, eggs, genes, nucleus, sperm
Which of the following words corresponds to __(4)__? [9a-12]
1. characteristics
2. genes
3. nucleus
4. cells
5. eggs
6. sperm
You get your __(1)__ from your parents __(2)__ which are contained in the __(3)__ of __(4)__. The female's genes are passed on in the __(5)__ and the male genes are passed on in the __(6)__.

Choose word from: cells, characteristics, eggs, genes, nucleus, sperm
Which of the following words corresponds to __(5)__? [9a-13]
1. characteristics
2. genes
3. nucleus
4. cells
5. eggs
6. sperm
You get your __(1)__ from your parents __(2)__ which are contained in the __(3)__ of __(4)__. The female's genes are passed on in the __(5)__ and the male genes are passed on in the __(6)__.

Choose word from: cells, characteristics, eggs, genes, nucleus, sperm
Which of the following words corresponds to __(6)__? [9a-14]
1. characteristics
2. genes
3. nucleus
4. cells
5. eggs
6. sperm
The physical features of plants are the result of several factors. They can genetically inherit characteristics from the parent seeds or they can be due to 'environmental' factors e.g. rainfall or soil fertility. Which of the following factors mainly controls a plant's flower colour? [9a-15]
1. only what is genetically inherited from the parent plant genes
2. a combination of genetic and environmental factors
3. only environmental factors
4. nothing to do with genetic or environmental factors
The physical features of plants are the result of several factors. They can genetically inherit characteristics from the parent seeds or they can be due to 'environmental' factors e.g. rainfall or soil fertility. Which of the following factors applies to a plants height? [9a-16]
1. only what is genetically inherited from the parent plant genes
2. a combination of genetic and environmental factors
3. only environmental factors
4. nothing to do with genetic or environmental factors
The physical features of plants are the result of several factors. They can genetically inherit characteristics from the parent seeds or they can be due to 'environmental' factors e.g. rainfall or soil fertility. Which of the following factors applies to a plants leaf shape? [9a-17]
1. only environmental factors
2. nothing to do with genetic or environmental factors
3. only what is genetically inherited from the parent plant genes
4. a combination of genetic and environmental factors
The physical features of plants are the result of several factors. They can genetically inherit characteristics from the parent seeds or they can be due to 'environmental' factors e.g. rainfall or soil fertility. Which of the following factors applies to a plants number of branches and leaves? [9a-18]
1. only environmental factors
2. nothing to do with genetic or environmental factors
3. only what is genetically inherited from the parent plant genes
4. a combination of genetic and environmental factors
Which of the phrases best matches the phrase selective breeding? [9a-19]
1. choosing characteristics you want to modify in the offspring by natural methods
2. the 'blueprint' for the characteristics of offspring
3. altering the information in genes before reproducing the organism
4. the greater survival of the organisms best adapted to their habitat or environment
Which of the phrases best matches the phrase genetic information? [9a-20]
1. choosing characteristics you want to modify in the offspring by natural breeding
2. the 'blueprint' for the characteristics of offspring
3. altering the information in genes before reproducing the organism
4. the greater survival of the organisms best adapted to their habitat or environment
Which of the phrases best matches the phrase genetic modification? [9a-21]
1. choosing characteristics you want to modify in the offspring by natural breeding
2. the 'blueprint' for the characteristics of offspring
3. altering the information in genes before reproducing the organism
4. the greater survival of the organisms best adapted to their habitat or environment
Which of the phrases best matches the phrase natural selection? [9a-22]
1. choosing characteristics you want to modify in the offspring by natural breeding
2. the 'blueprint' for the characteristics of offspring
3. altering the information in genes before reproducing the organism
4. the greater survival of the organisms best adapted to their habitat or environment
Which of the following words best completes the sentence .....

The colour of a cats coat is __?__ from its parents. [9a-23]
1. inherited
2. selected
3. modified
4. cloned
5. adapted
6. mutated
Which of the following words best completes the sentence .....

A characteristic of an animal can be __?__ by cross breeding animals with the desired characteristic. [9a-24]
1. inherited
2. selected
3. stored
4. cloned
5. adapted
6. mutated
Which of the following words best completes the sentence .....

Genetic information can be deliberately __?__ in the laboratory to change the characteristics of an organism. [9a-25]
1. inherited
2. stored
3. modified
4. cloned
5. adapted
6. mutated
Which of the following words best completes the sentence .....

When an animal egg cell is developed by only using genetic material from the mother, the resulting identical offspring are described as being __?__ from the mother. [9a-26]
1. inherited
2. selected
3. modified
4. cloned
5. adapted
6. mutated
Which of the following words best completes the sentence .....

When, through evolution, an organism has developed a characteristic that helps it survive in its habitat, it is said to be __?__ to its environment. [9a-27]
1. inherited
2. stored
3. modified
4. cloned
5. adapted
6. mutated
Which of the following words best completes the sentence .....

Radioactivity or chemicals can cause a cell to be __?__ and so 'accidentally', and usually harmfully, changing the information in the genes. [9a-28]
1. inherited
2. selected
3. modified
4. cloned
5. adapted
6. mutated
Offspring are __(1)__ but not __(2)__ to their parents. Some __(3)__ are __(4)__ from their genes, but, in both plants and animals, __(5)__ occur due to __(6)__ and different gene combinations.

Choose the word from: characteristics, identical, inherited, mutations, similar, variations
Which of the following words corresponds to __(1)__? [9a-29]
1. similar
2. identical
3. characteristics
4. inherited
5. variations
6. mutations
Offspring are __(1)__ but not __(2)__ to their parents. Some __(3)__ are __(4)__ from their genes, but, in both plants and animals, __(5)__ occur due to __(6)__ and different gene combinations.

Choose the word from: characteristics, identical, inherited, mutations, similar, variations
Which of the following words corresponds to __(2)__? [9a-30]
1. similar
2. identical
3. characteristics
4. inherited
5. variations
6. mutations
Offspring are __(1)__ but not __(2)__ to their parents. Some __(3)__ are __(4)__ from their genes, but, in both plants and animals, __(5)__ occur due to __(6)__ and different gene combinations.

Choose the word from: characteristics, identical, inherited, mutations, similar, variations
Which of the following words corresponds to __(3)__? [9a-31]
1. similar
2. identical
3. characteristics
4. inherited
5. variations
6. mutations
Offspring are __(1)__ but not __(2)__ to their parents. Some __(3)__ are __(4)__ from their genes, but, in both plants and animals, __(5)__ occur due to __(6)__ and different gene combinations.

Choose the word from: characteristics, identical, inherited, mutations, similar, variations
Which of the following words corresponds to __(4)__? [9a-32]
1. similar
2. identical
3. characteristics
4. inherited
5. variations
6. mutations
Offspring are __(1)__ but not __(2)__ to their parents. Some __(3)__ are __(4)__ from their genes, but, in both plants and animals, __(5)__ occur due to __(6)__ and different gene combinations.

Choose the word from: characteristics, identical, inherited, mutations, similar, variations
Which of the following words corresponds to __(5)__? [9a-33]
1. similar
2. identical
3. characteristics
4. inherited
5. variations
6. mutations
Offspring are __(1)__ but not __(2)__ to their parents. Some __(3)__ are __(4)__ from their genes, but, in both plants and animals, __(5)__ occur due to __(6)__ and different gene combinations.

Choose the word from: characteristics, identical, inherited, mutations, similar, variations
Which of the following words corresponds to __(6)__? [9a-34]
1. similar
2. identical
3. characteristics
4. inherited
5. variations
6. mutations
In mammalian sexual reproduction, which cell contains the female genes? [9a-35]
1. cell 4
2. cell 5
3. cell 3
4. cell 6
In mammalian sexual reproduction, which cell contains the male genes? [9a-36]
1. cell 4
2. cell 5
3. cell 3
4. cell 6
In mammalian sexual reproduction, which cell contains the genetic information from the female? [9a-37]
1. cell 3
2. cell 6
3. cell 4
4. cell 5
In mammalian sexual reproduction, which cell contains the genetic information from the male? [9a-38]
1. cell 3
2. cell 6
3. cell 4
4. cell 5
Most cells have __(1)__ which contain __(2)__ that transfer molecular instructions from one __(3)__ to the next. In __(4)__ the genetic __(5)__ from the parents is __(6)__.

Choose the word from: combined, fertilisation, information, genes, generation, nuclei
Which of the following words corresponds to __(1)__? [9a-39]
1. nuclei
2. genes
3. generation
4. fertilisation
5. information
6. combined
Most cells have __(1)__ which contain __(2)__ that transfer molecular instructions from one __(3)__ to the next. In __(4)__ the genetic __(5)__ from the parents is __(6)__.

Choose the word from: combined, fertilisation, information, genes, generation, nuclei
Which of the following words corresponds to __(2)__? [9a-40]
1. nuclei
2. genes
3. generation
4. fertilisation
5. information
6. combined
Most cells have __(1)__ which contain __(2)__ that transfer molecular instructions from one __(3)__ to the next. In __(4)__ the genetic __(5)__ from the parents is __(6)__.

Choose the word from: combined, fertilisation, information, genes, generation, nuclei
Which of the following words corresponds to __(3)__? [9a-41]
1. nuclei
2. genes
3. generation
4. fertilisation
5. information
6. combined
Most cells have __(1)__ which contain __(2)__ that transfer molecular instructions from one __(3)__ to the next. In __(4)__ the genetic __(5)__ from the parents is __(6)__.

Choose the word from: combined, fertilisation, information, genes, generation, nuclei
Which of the following words corresponds to __(4)__? [9a-42]
1. nuclei
2. genes
3. generation
4. fertilisation
5. information
6. combined
Most cells have __(1)__ which contain __(2)__ that transfer molecular instructions from one __(3)__ to the next. In __(4)__ the genetic __(5)__ from the parents is __(6)__.

Choose the word from: combined, fertilisation, information, genes, generation, nuclei
Which of the following words corresponds to __(5)__? [9a-43]
1. nuclei
2. genes
3. generation
4. fertilisation
5. information
6. combined
Most cells have __(1)__ which contain __(2)__ that transfer molecular instructions from one __(3)__ to the next. In __(4)__ the genetic __(5)__ from the parents is __(6)__.

Choose the word from: combined, fertilisation, information, genes, generation, nuclei
Which of the following words corresponds to __(6)__? [9a-44]
1. nuclei
2. genes
3. generation
4. fertilisation
5. information
6. combined
The tendency to form freckles in sunlight is genetically inherited. If Molly and Mark have freckles who might you predict to also have freckles in the 3rd generation? [9a-45]
1. Joey or Selena
2. only Joey
3. only Selena
4. neither Joey nor Selena
The tendency to form freckles in sunlight is genetically inherited. If only Phil has freckles in the 1st generation and only Joey in the 3rd generation who is most likely to have freckles in the 2nd generation? [9a-46]
1. Tom
2. Mark
3. Sue
4. Ros
The tendency to form freckles in sunlight is genetically inherited. If only Fred and Sue have freckles in the first two generations, who is most likely to have freckles in the 3rd generation? [9a-47]
1. only Joey
2. only Selena
3. Joey or Selena
4. neither Joey nor Selena
The tendency to form freckles in sunlight is genetically inherited. If Fred and Selena have freckles, who is most likely to have freckles too? [9a-48]
1. Tom
2. Mark
3. Phil
4. Sue
Kate and Kim are identical twins.
One afternoon, Kate prefers reading a book, but Kim prefers to go for a bike ride.
Which of the following applies to the heart beating normally? [9a-49]
1. Kate only
2. Kim only
3. Kate and Kim
4. neither Kate nor Kim
Kate and Kim are identical twins.
One afternoon, Kate prefers reading a book, but Kim prefers to go for a bike ride.
Which of the following applies to a fast breathing rate? [9a-50]
1. Kate only
2. Kim only
3. Kate and Kim
4. neither Kate nor Kim
Kate and Kim are identical twins.
One afternoon, Kate prefers reading a book, but Kim prefers to go for a bike ride.
Which of the following applies to having black hair? [9a-51]
1. Kate only
2. Kim only
3. Kate and Kim
4. neither Kate nor Kim
Kate and Kim are identical twins.
One afternoon, Kate prefers reading a book, but Kim prefers to go for a bike ride.
Which of the following applies to having brown eyes? [9a-52]
1. Kate only
2. Kim only
3. neither Kate nor Kim
4. Kate and Kim
Which of the following is NOT true? [9a-53]
1. genetic information is stored in the cell cytoplasm
2. identical twins are formed from a fertilised egg that divides into two complete cells
3. fertilisation is when the nuclei of the egg cell and sperm combine
4. non-identical twins grow from separately fertilised eggs
Which of the following is NOT true? [9a-54]
1. genetic information is stored in the cell nucleus
2. identical twins are formed from two identical fertilised eggs
3. fertilisation is when the nuclei of the egg cell and sperm combine
4. non-identical twins grow from separately fertilised eggs
Which of the following is NOT true? [9a-55]
1. genetic information is stored in the cell nucleus
2. identical twins are formed from a fertilised egg that divides into two complete cells
3. fertilisation is when the cytoplasm of the egg cell and sperm combine
4. non-identical twins grow from separately fertilised eggs
Which of the following is NOT true? [9a-56]
1. genetic information is stored in the cell nucleus
2. identical twins are formed from a fertilised egg that divides into two complete cells
3. fertilisation is when the nuclei of the egg cell and sperm combine
4. non-identical twins grow from the same fertilised egg
Which of the following is NOT true? [9a-57]
1. offspring get their genetic information from only the sperm cell
2. non-identical twins are likely to have some similar inherited characteristics
3. different lifestyles will result in physical differences between identical twins
4. brothers or sisters do not inherit exactly the same genetic information
Which of the following is NOT true? [9a-58]
1. offspring get their genetic information from both the sperm and egg cells
2. non-identical twins are unlikely to have any similar inherited characteristics
3. different lifestyles will result in physical differences between identical twins
4. brothers or sisters do not inherit exactly the same genetic information
Which of the following is NOT true? [9a-59]
1. offspring get their genetic information from both the sperm and egg cells
2. non-identical twins are likely to have some similar inherited characteristics
3. different lifestyles will not result in physical differences between identical twins
4. brothers and sisters do not inherit exactly the same genetic information
Which of the following is NOT true? [9a-60]
1. offspring get their genetic information from both the sperm and egg cells
2. non-identical twins are likely to have some similar inherited characteristics
3. different lifestyles will result in physical differences between identical twins
4. brothers or sisters inherit exactly the same genetic information
The __(1)__ of male and female sex-cell nuclei produces a new __(2)__ that is genetically __(3)__. This sexual __(4)__ process is __(5)__ in plants and animals, though some single celled organisms can reproduce by __(6)__ reproduction.

Choose the word from: asexual, fertilisation, fusion, individual, similar, unique
Which word is missing from __(1)__? [9a-61]
1. fusion (combination)
2. individual
3. unique
4. fertilisation
5. similar
6. asexual
The __(1)__ of male and female sex-cell nuclei produces a new __(2)__ that is genetically __(3)__. This sexual __(4)__ process is __(5)__ in plants and animals, though some single celled organisms can reproduce by __(6)__ reproduction.

Which word is missing from __(2)__? [9a-62]
1. fusion (combination)
2. individual
3. unique
4. fertilisation
5. similar
6. asexual
The __(1)__ of male and female sex-cell nuclei produces a new __(2)__ that is genetically __(3)__. This sexual __(4)__ process is __(5)__ in plants and animals, though some single celled organisms can reproduce by __(6)__ reproduction.

Which word is missing from __(3)__? [9a-63]
1. fusion (combination)
2. individual
3. unique
4. fertilisation
5. similar
6. asexual
The __(1)__ of male and female sex-cell nuclei produces a new __(2)__ that is genetically __(3)__. This sexual __(4)__ process is __(5)__ in plants and animals, though some single celled organisms can reproduce by __(6)__ reproduction.

Which word is missing from __(4)__? [9a-64]
1. fusion (combination)
2. individual
3. unique
4. fertilisation
5. similar
6. asexual
The __(1)__ of male and female sex-cell nuclei produces a new __(2)__ that is genetically __(3)__. This sexual __(4)__ process is __(5)__ in plants and animals, though some single celled organisms can reproduce by __(6)__ reproduction.

Which word is missing from __(5)__? [9a-65]
1. fusion (combination)
2. individual
3. unique
4. fertilisation
5. similar
6. asexual
The __(1)__ of male and female sex-cell nuclei produces a new __(2)__ that is genetically __(3)__. This sexual __(4)__ process is __(5)__ in plants and animals, though some single celled organisms can reproduce by __(6)__ reproduction.

Which word is missing from __(6)__? [9a-66]
1. fusion (combination)
2. individual
3. unique
4. fertilisation
5. similar
6. asexual
[7b-115] Which of the following statements best corresponds to the term chromosomes?
1. Long pieces of DNA containing many genes.
2. Sex cells carrying half the total number of chromosomes of each parent.
3. A molecule found in the nucleus of cells that contains genetic information.
4. Sections of DNA that determines an inherited characteristic.
[7b-116] Which of the following statements best corresponds to the term chromosomes?
1. Thread-like structures containing tightly coiled DNA
2. Sex cells carrying half the total number of chromosomes of each parent.
3. A molecule found in the nucleus of cells that contains genetic information.
4. Sections of DNA that determines an inherited characteristic.
[7b-117] Which of the following statements best corresponds to the term gametes?
1. Thread-like structures containing tightly coiled DNA
2. Sex cells carrying half the total number of chromosomes of each parent.
3. A molecule found in the nucleus of cells that contains genetic information.
4. Sections of DNA that determines an inherited characteristic.
[7b-118] Which of the following statements best corresponds to the abbreviation DNA?
1. Long molecules containing many genes.
2. Sex cells carrying half the total number of chromosomes of each parent.
3. A molecule found in the nucleus of cells that contains genetic information.
4. Sections of genetic material that determines an inherited characteristic.
[7b-119] Which of the following statements best corresponds to the term genes?
1. Thread-like structures containing tightly coiled DNA
2. Sex cells carrying half the total number of chromosomes of each parent.
3. A molecule found in the nucleus of cells that contains genetic information.
4. Sections of DNA that determines an inherited characteristic.
[7b-120] Which of the following statements best corresponds to the term fertilisation?
1. The joining of a nucleus from a male and female sex cell.
2. The release of an egg cell during the menstrual cycle, which may be met by a sperm.
3. The loss of the lining of the uterus during the menstrual cycle.
4. The process where the baby develops during pregnancy.
[7b-121] Which of the following statements best corresponds to the term ovulation?
1. The joining of a nucleus from a male and female sex cell.
2. The release of an egg cell during the menstrual cycle, which may be met by a sperm.
3. The loss of the lining of the uterus during the menstrual cycle.
4. The process where the baby develops during pregnancy.
[7b-122] Which of the following statements best corresponds to the term menstruation?
1. The joining of a nucleus from a male and female sex cell.
2. The release of an egg cell during the menstrual cycle, which may be met by a sperm.
3. The loss of the lining of the uterus during the menstrual cycle.
4. The process where the baby develops during pregnancy.
[7b-123] Which of the following statements best corresponds to the term gestation?
1. The joining of a nucleus from a male and female sex cell.
2. The release of an egg cell during the menstrual cycle, which may be met by a sperm.
3. The loss of the lining of the uterus during the menstrual cycle.
4. The process where the baby develops during pregnancy.
[7b-124] Which of the following statements corresponds to the term egg?
1. The female gamete or female sex cell.
2. Where a baby develops in a pregnant woman.
3. The organ which carries sperm out of the male’s body.
4. It carries an egg from the ovary to the uterus and is where fertilisation occurs.
[7b-125] Which of the following statements corresponds to the term uterus?
1. The female gamete or female sex cell.
2. Where a baby develops in a pregnant woman.
3. The organ which carries sperm out of the male’s body.
4. It carries an egg from the ovary to the uterus and is where fertilisation occurs.
[7b-126] Which of the following statements corresponds to the term penis?
1. The female gamete or female sex cell.
2. Where a baby develops in a pregnant woman.
3. The organ which carries sperm out of the male’s body.
4. It carries an egg from the ovary to the uterus and is where fertilisation occurs.
[7b-127] Which of the following statements corresponds to the term fallopian tube?
1. The female gamete or female sex cell.
2. Where a baby develops in a pregnant woman.
3. The organ which carries sperm out of the male’s body.
4. It carries an egg from the ovary to the uterus and is where fertilisation occurs.
[7b-128] Which of the following statements corresponds to the term foetus?
1. The developing baby during pregnancy.
2. The male gamete or male sex cell
3. The female organ which contains eggs.
4. Where the penis enters the female’s body and sperm is received.
[7b-129] Which of the following statements corresponds to the term sperm?
1. The developing baby during pregnancy.
2. The male gamete or male sex cell
3. The female organ which contains eggs.
4. Where the penis enters the female’s body and sperm is received.
[7b-130] Which of the following statements corresponds to the term ovary?
1. The developing baby during pregnancy.
2. The male gamete or male sex cell
3. The female organ which contains eggs.
4. Where the penis enters the female’s body and sperm is received.
[7b-131] Which of the following statements corresponds to the term vagina?
1. The developing baby during pregnancy.
2. The male gamete or male sex cell
3. The female organ which contains eggs.
4. Where the penis enters the female’s body and sperm is received.
[7b-132] Which of the following statements corresponds to the term testicle?
1. The organ where sperm are produced.
2. It carries an egg from the ovary to the uterus and is where fertilisation occurs.
3. The organ that provides the foetus with oxygen and nutrients and removes waste substances.
4. Where a baby develops in a pregnant woman.
[7b-133] Which of the following statements corresponds to the term oviduct?
1. The organ where sperm are produced.
2. It carries an egg from the ovary to the uterus and is where fertilisation occurs.
3. The organ that provides the foetus with oxygen and nutrients and removes waste substances.
4. Where a baby develops in a pregnant woman.
[7b-134] Which of the following statements corresponds to the term placenta?
1. The organ where sperm are produced.
2. It carries an egg from the ovary to the uterus and is where fertilisation occurs.
3. The organ that provides the foetus with oxygen and nutrients and removes waste substances.
4. Where a baby develops in a pregnant woman.
[7b-135] Which of the following statements corresponds to the term umbilical cord?
1. The organ where sperm are produced.
2. It carries an egg from the ovary to the uterus and is where fertilisation occurs.
3. The organ that provides the foetus with oxygen and nutrients and removes waste substances.
4. It connects the foetus to the placenta.
[7b-136] Which of the following statements corresponds to the term womb?
1. The organ where sperm are produced.
2. It carries an egg from the ovary to the uterus and is where fertilisation occurs.
3. The organ that provides the foetus with oxygen and nutrients and removes waste substances.
4. Where a baby develops in a pregnant woman.
[7b-137] Which scientific work matches the scientist Francis Crick?
1. One of the first scientists to propose the correct double helix structure of DNA in biochemistry.
2. An X-ray crystallographer who provided evidence for the double helix structure of DNA in biochemistry.
3. First to record the random motion of pollens grains suspended in water and viewed under a microscope.
4. Developed the modern periodic table in chemistry.
5. Formulated some mathematical laws of motion in physics.
[7b-138] Which scientific work matches the scientist James Watson?
1. One of the first scientists to propose the correct double helix structure of DNA in biochemistry.
2. An X-ray crystallographer who provided evidence for the double helix structure of DNA in biochemistry.
3. First to record the random motion of pollens grains suspended in water and viewed under a microscope.
4. Developed the modern periodic table in chemistry.
5. Formulated some mathematical laws of motion in physics.
[7b-139] Which scientific work matches the scientist Rosalind Franklin?
1. One of the first scientists to propose the correct double helix structure of DNA in biochemistry.
2. An X-ray crystallographer who provided evidence for the double helix structure of DNA in biochemistry.
3. First to record the random motion of pollens grains suspended in water and viewed under a microscope.
4. Developed the modern periodic table in chemistry.
5. Formulated some mathematical laws of motion in physics.
[7b-140] Which scientific work matches the scientist Robert Brown?
1. One of the first scientists to propose the correct double helix structure of DNA in biochemistry.
2. An X-ray crystallographer who provided evidence for the double helix structure of DNA in biochemistry.
3. First to record the random motion of pollens grains suspended in water and viewed under a microscope.
4. Developed the modern periodic table in chemistry.
5. Formulated some mathematical laws of motion in physics.
[7b-141] Which scientific work matches the scientist Dmitri Mendeleev?
1. One of the first scientists to propose the correct double helix structure of DNA in biochemistry.
2. An X-ray crystallographer who provided evidence for the double helix structure of DNA in biochemistry.
3. First to record the random motion of pollens grains suspended in water and viewed under a microscope.
4. Developed the modern periodic table in chemistry.
5. Formulated some mathematical laws of motion in physics.
[7b-142] Which scientific work matches the scientist Isaac Newton?
1. One of the first scientists to propose the correct double helix structure of DNA in biochemistry.
2. An X-ray crystallographer who provided evidence for the double helix structure of DNA in biochemistry.
3. First to record the random motion of pollens grains suspended in water and viewed under a microscope.
4. Developed the modern periodic table in chemistry.
5. Formulated some mathematical laws of motion in physics.
[7b-143] Which corresponds to days 1 to 4 of the human female menstrual cycle?
1. The bleeding starts as the lining of the uterus breaks down and passes out of the vagina.
2. The lining of the uterus starts to build again and thickens into a spongy layer full of blood vessels ready for implantation of an embryo.
3. An egg is released from the ovaries of the woman.
4. The wall remains thick awaiting the arrival of a fertilised egg, if not, the lining breaks down, passing out of the vagina.
[7b-144] Which corresponds to days 5 to 13 of the human female menstrual cycle?
1. The bleeding starts as the lining of the uterus breaks down and passes out of the vagina.
2. The lining of the uterus starts to build again and thickens into a spongy layer full of blood vessels ready for implantation of an embryo.
3. An egg is released from the ovaries of the woman.
4. The wall remains thick awaiting the arrival of a fertilised egg, if not, the lining breaks down, passing out of the vagina.
[7b-145] Which corresponds to days 14 to 17 of the human female menstrual cycle?
1. The bleeding starts as the lining of the uterus breaks down and passes out of the vagina.
2. The lining of the uterus starts to build again and thickens into a spongy layer full of blood vessels ready for implantation of an embryo.
3. An egg is released from the ovaries of the woman.
4. The wall remains thick awaiting the arrival of a fertilised egg, if not, the lining breaks down, passing out of the vagina.
[7b-146] Which corresponds to day 28 of the human female menstrual cycle?
1. The bleeding starts as the lining of the uterus breaks down and passes out of the vagina.
2. The lining of the uterus starts to build again and thickens into a spongy layer full of blood vessels ready for implantation of an embryo.
3. An egg is released from the ovaries of the woman.
4. The wall remains thick awaiting the arrival of a fertilised egg, if not, the lining breaks down, passing out of the vagina.
[7b-147] Which of the following corresponds to ovulation in human reproduction?
1. An egg is released from an ovary.
2. Millions of sperm are released from the penis into the vagina.
3. The nucleus of the egg cell fuses with the nucleus of the sperm cell.
4. The fertilised egg splits in two and the splits continue to increase the number of cells.
5. A fertilised cell, the embryo, starts to embed itself in the wall of the uterus.
[7b-148] Which of the following corresponds to copulation in human reproduction?
1. An egg is released from an ovary.
2. Millions of sperm are released from the penis into the vagina.
3. The nucleus of the egg cell fuses with the nucleus of the sperm cell.
4. The fertilised egg splits in two and the splits continue to increase the number of cells.
5. A fertilised cell, the embryo, starts to embed itself in the wall of the uterus.
[7b-149] Which of the following corresponds to fertilisation in human reproduction?
1. An egg is released from an ovary.
2. Millions of sperm are released from the penis into the vagina.
3. The nucleus of the egg cell fuses with the nucleus of the sperm cell.
4. The fertilised egg splits in two and the splits continue to increase the number of cells.
5. A fertilised cell, the embryo, starts to embed itself in the wall of the uterus.
[7b-150] Which of the following corresponds to cell division in human reproduction?
1. An egg is released from an ovary.
2. Millions of sperm are released from the penis into the vagina.
3. The nucleus of the egg cell fuses with the nucleus of the sperm cell.
4. The fertilised egg splits in two and the splits continue to increase the number of cells.
5. A fertilised cell, the embryo, starts to embed itself in the wall of the uterus.
[7b-151] Which of the following corresponds to implantation in human reproduction?
1. An egg is released from an ovary.
2. Millions of sperm are released from the penis into the vagina.
3. The nucleus of the egg cell fuses with the nucleus of the sperm cell.
4. The fertilised egg splits in two and the splits continue to increase the number of cells.
5. A fertilised cell, the embryo, starts to embed itself in the wall of the uterus.
[7b-152] Which of the following corresponds to embryo formation in human reproduction?
1. An egg is released from an ovary.
2. Millions of sperm are released from the penis into the vagina.
3. The nucleus of the egg cell fuses with the nucleus of the sperm cell.
4. The fertilised egg splits in two and the splits continue to increase the number of cells.
5. A fertilised cell, the embryo, starts to embed itself in the wall of the uterus.
[7b-153] Which of the following statements is incorrect concerning pregnancy?
1. Oxygen diffuses through the amnion membrane to the foetus.
2. Waste substances diffuse from the unborn baby through the umbilical cord and placenta to the mother's blood.
3. If a mother consumes alcoholic drinks in pregnancy, alcohol can pass through the placenta and umbilical cord to the foetus affecting its development.
4. If a mother smokes during pregnancy, harmful substance can pass from the mother's blood through the placenta and umbilical cord to the foetus affecting its development.
[7b-154] Which of the following statements is incorrect concerning pregnancy?
1. Oxygen diffuses from the mother's blood through the placenta and umbilical cord to the foetus.
2. Waste substances diffuse from the unborn baby through the amnion membrane to the mother's blood.
3. If a mother consumes alcoholic drinks in pregnancy, alcohol can pass through the placenta and umbilical cord to the foetus affecting its development.
4. If a mother smokes during pregnancy, harmful substance can pass from the mother's blood through the placenta and umbilical cord to the foetus affecting its development.
[7b-155] Which of the following statements is incorrect concerning pregnancy?
1. Oxygen diffuses from the mother's blood through the placenta and umbilical cord to the foetus.
2. Waste substances diffuse from the unborn baby through the umbilical cord and placenta to the mother's blood.
3. If a mother consumes little alcoholic drink in pregnancy, no alcohol can pass through the placenta and umbilical cord to the foetus to affect its development.
4. If a mother smokes during pregnancy, harmful substance can pass from the mother's blood through the placenta and umbilical cord to the foetus affecting its development.
[7b-156] Which of the following statements is incorrect concerning pregnancy?
1. Oxygen diffuses from the mother's blood through the placenta and umbilical cord to the foetus.
2. Waste substances diffuse from the unborn baby through the umbilical cord and placenta to the mother's blood.
3. If a mother consumes alcoholic drinks in pregnancy, alcohol can pass through the placenta and umbilical cord to the foetus affecting its development.
4. If a mother smokes during pregnancy, carbon monoxide cannot pass from the mother's blood through the placenta and umbilical cord to the foetus affecting its development.
[7b-157] Which of the following statements is incorrect concerning pregnancy?
1. Glucose for respiration diffuses from the mother's blood through the amnion membrane to the foetus.
2. Mineral nutrients diffuse from the mother's blood through the placenta and umbilical to the foetus.
3. Carbon dioxide from respiration diffuses from the unborn baby through the umbilical cord and placenta to the mother's blood.
4. If a mother takes harmful drugs in pregnancy, they can pass through the placenta and umbilical cord to the foetus affecting its development.
[7b-158] Which of the following statements is incorrect concerning pregnancy?
1. Glucose for respiration diffuses from the mother's blood through the placenta and umbilical cord to the foetus.
2. Mineral nutrients diffuse from the mother's blood through the amnion membrane to the foetus.
3. Carbon dioxide from respiration diffuses from the unborn baby through the umbilical cord and placenta to the mother's blood.
4. If a mother takes harmful drugs in pregnancy, they can pass through the placenta and umbilical cord to the foetus affecting its development.
[7b-159] Which of the following statements is incorrect concerning pregnancy?
1. Glucose for respiration diffuses from the mother's blood through the placenta and umbilical cord to the foetus.
2. Mineral nutrients diffuse from the mother's blood through the placenta and umbilical to the foetus.
3. Carbon dioxide from respiration diffuses from the unborn baby through the amnion membrane to the mother's blood.
4. If a mother takes harmful drugs in pregnancy, they can pass through the placenta and umbilical cord to the foetus affecting its development.
[7b-160] Which of the following statements is incorrect concerning pregnancy?
1. Glucose for respiration diffuses from the mother's blood through the placenta and umbilical cord to the foetus.
2. Mineral nutrients diffuse from the mother's blood through the placenta and umbilical to the foetus.
3. Carbon dioxide from respiration diffuses from the unborn baby through the umbilical cord and placenta to the mother's blood.
4. If a mother takes harmless medications in pregnancy, they cannot pass through the placenta and umbilical cord to the foetus.
[7b-161] Which of the following statements is incorrect concerning heredity?
1. Individual chromosomes control a particular characteristic.
2. Genes work in pairs, one is usually dominant over the other to determine a characteristic.
3. A gene in a chromosome may code for a specific protein.
4. The nucleus of most cells in your body has the full compliment of 46 chromosomes.
[7b-162] Which of the following statements is incorrect concerning heredity?
1. Individual genes control different characteristics.
2. Genes work as individuals in determining characteristics.
3. A gene in a chromosome may code for a specific protein.
4. The nucleus of most cells in your body has the full compliment of 46 chromosomes.
[7b-163] Which of the following statements is incorrect concerning heredity?
1. Individual genes control different characteristics.
2. Genes work in pairs, one is usually dominant over the other to determine a characteristic.
3. A chromosome in a gene may code for a specific protein.
4. The nucleus of most cells in your body has the full compliment of 46 chromosomes.
[7b-164] Which of the following statements is incorrect concerning heredity?
1. Individual genes control different characteristics.
2. Genes work in pairs, one is usually dominant over the other to determine a characteristic.
3. A gene in a chromosome may code for a specific protein.
4. The nucleus of most cells in your body has 23 chromosomes.
[7b-165] Which of the following statements is incorrect concerning human heredity?
1. The sperm and ova (egg) sex cells, each contain 46 chromosomes in their nuclei.
2. A fertilised egg cell contains the full compliment of 46 chromosomes in the nucleus.
3. A fertilised egg has two versions of each chromosome, one from the mother and one from the father.
4. The nucleus of most cells in your body have 23 pairs of chromosomes.
[7b-165] Which of the following statements is incorrect concerning human heredity?
1. The sperm and ova (egg) sex cells, each contain 23 chromosomes in their nuclei.
2. A fertilised egg cell contains the full compliment of 92 chromosomes in the nucleus.
3. A fertilised egg has two versions of each chromosome, one from the mother and one from the father.
4. The nucleus of most cells in your body have 23 pairs of chromosomes.
[7b-165] Which of the following statements is incorrect concerning human heredity?
1. The sperm and ova (egg) sex cells, each contain 23 chromosomes in their nuclei.
2. A fertilised egg cell contains the full compliment of 46 chromosomes in the nucleus.
3. A fertilised egg has only one version of each chromosome.
4. The nucleus of most cells in your body have 23 pairs of chromosomes.
[7b-168] Which of the following statements is incorrect concerning human heredity?
1. The sperm and ova (egg) sex cells, each contain 23 chromosomes in their nuclei.
2. A fertilised egg cell contains the full compliment of 46 chromosomes in the nucleus.
3. A fertilised egg has two versions of each chromosome, one from the mother and one from the father.
4. The nucleus of most cells in your body have 46 pairs of chromosomes.
[7b-169] Which scientific work matches the scientist Maurice Wilkins?
1. One of the first scientists to propose the correct double helix structure of DNA in biochemistry.
2. Scientist who provided evidence for the double helix structure of DNA in biochemistry.
3. First to record the random motion of pollens grains suspended in water and viewed under a microscope.
4. Developed the modern periodic table in chemistry.
5. Formulated some mathematical laws of motion in physics.

Practice test exam questions Doc Brown's KS3 biology exam practice questions for revision topic test quiz on Human reproduction KS3 science for AQA, Edexcel and OCR pre-gcse courses KS3 science online KS3 biology practice revision questions for KS3 biology unit tests or summer exam papers up to higher level KS3 science biology for AQA KS3 science-biology courses and Edexcel and OCR KS3 science biology courses quiz on Reproduction Questions on human reproductive organs, function of sperm and egg cells, fertilisation, menstrual cycle, pregnancy, birth, structure of womb, and other parts of female reproductive system US grade 6 biological science US grade 7 biology science US grade 8 science biology Doc Brown's KS3 science-biology Quiz questions INHERITANCE and SELECTION - adaptations, inherited characteristics, cloning, genetic & environmental factors, family trees for AQA, Edexcel and OCR pre-gcse courses exams KS3 science online KS3 biology practice revision questions for KS3 biology unit tests or summer exam papers up to higher level KS3 science biology for AQA KS3 science-biology courses and Edexcel and OCR KS3 science biology courses quiz on Inheritance and selection Questions on inherited characteristics, animal adaptations inherited to survive in their habitats, effect of environment on characteristics, variation in offspring, selective breeding for particular character, cloning, how characteristics are inherited, genetic factors, environmental factors, understanding how to interpret a family tree and inheritance of family characteristics US grade 6 biological science US grade 7 biology science US grade 8 science biology scientific work of Francis Crick Maurice Wilkins Rosalind Franklin James Watson deducing the alpha double helix of DNA explaining what a gene and chromosome are.

7B Quiz "Human reproduction, genetics and inheritance" Practice exam questions © Doc Brown's KS3 biology (10 Q)