GCSE Biology – Selective breeding

Last updated: 30/05/2020

Edexcel GCSE Science – Biology higher Natural selection and genetic modification GCSE Biology – Selective breeding

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-I can describe the impact of selective breeding

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Question 1 of 25

1. Question
What do we call the genes in an individual?
- Genotype
- Genetics
- Makeup
- Phenotype
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Question 2 of 25

2. Question
What do we call the outward appearance of genes?
- Phenotype
- Genotype
- Outward appearance
- Genetics
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Question 3 of 25

3. Question
What is selective breeding?
- Where humans develop plants and animals with certain genetic characteristics
- Where humans develop plants with certain genetic characteristics
- Where humans develop animals with certain genetic characteristics
- None of the above
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Question 4 of 25

4. Question
What does selective breeding lead to?
- Inbreeding
- Breeding
- Interbreeding
- Crossbreeding
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Question 5 of 25

5. Question
What is inbreeding?
- Breeding within a small genetic pool
- Breeding within a large genetic pool
- Breeding between kingdoms
- Breeding between species
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Question 6 of 25

6. Question
Why is inbreeding a problem?
- It increases chances of disease or defects
- It decreases chance of disease
- It increases number of offspring
- It decreases breeding rates
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Question 7 of 25

7. Question
What is the first step in selective breeding?
- Choose parents with the desired characteristics
- Choose a population
- Choose an environment best suited to the alleles
- Always find the largest animal
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Question 8 of 25

8. Question
What is the second step of selective breeding?
- Breed the desired parents together
- Breed random parents together
- Breed parents from different species together
- Breed parents from different kingdoms together
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Question 9 of 25

9. Question
What is the third step of selective breeding?
- Choose the offspring with the desired characteristics and breed them
- Choose the offspring without desired characteristics
- Choose the parents with the desired characteristics and breed them
- Always find the largest animal
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Question 10 of 25

10. Question
What is the fourth step of selective breeding?
- Continue over many generations until all offspring show the characteristic
- Stop after one generation
- Continue over a few generations until most offspring show the characteristic
- Always find the largest animal
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Question 11 of 25

11. Question
What is selective breeding also called?
- Artificial selection
- Genetic engineering
- Genetic modification
- Respiration
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Question 12 of 25

12. Question
Why is selective breeding also called artificial selection?
- As humans, rather than the environment, provide the selection
- As the environment provides the selection pressure
- As there is no selection pressure from humans
- As no evolution takes place
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Question 13 of 25

13. Question
What is the difference between natural and artificial selection?
- Natural – caused by environment, Artificial – caused by humans
- Natural – caused by environment, Artificial – caused by animals
- Artificial – caused by environment, Natural – caused by humans
- Artificial – caused by environment, Natural – caused by animals
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Question 14 of 25

14. Question
How long have humans been selective breeding?
- Thousands of years
- Only 50 years
- Only 30 years
- Only 100 years
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Question 15 of 25

15. Question
What can the desired characteristic be for?
- All of these answers
- Usefulness
- Appearance
- Economic advantage
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Question 16 of 25

16. Question
What do we selectively breed domestic animals to have?
- A gentle nature
- A harsh nature
- A smaller body
- A larger body
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Question 17 of 25

17. Question
Why do we want pets with a gentle nature?
- So they are family friendly
- So they are not family friendly
- So they are more expensive
- So they are less expensive
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Question 18 of 25

18. Question
What have evolved into food crops by selective breeding?
- Wild plants
- Wild animals
- Wild pets
- Wild medicines
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Question 19 of 25

19. Question
What do we selectively breed flowers to have?
- Large or unusual flowers
- Small flowers
- Less flowers
- No flowers
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Question 20 of 25

20. Question
Why do we want flowers that are large or unusual?
- So we can sell them
- So we cannot sell them
- So we sell less of them
- So they are harder to sell
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Question 21 of 25

21. Question
What do we selectively breed farm animals to be like?
- Large
- Small
- Gentle
- Soft
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Question 22 of 25

22. Question
Why do we want large farm animals?
- To increase meat yields for farmers
- To decrease meat yields for farmers
- To increase pricing for the public
- To decrease profits for farmers
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Question 23 of 25

23. Question
What have evolved into domesticated pets by selective breeding?
- Wild animals
- Wild pets
- Wild medicines
- Wild plants
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Question 24 of 25

24. Question
What do we selectively breed food crops to have?
- Disease resistance
- Antibiotic resistance
- Antiretroviral drug resistance
- Lower levels of respiration
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Question 25 of 25

25. Question
Why do we want disease resistant food crops?
- To increase yields for farmers
- To decrease yields for farmers
- To decrease profits for farmers
- To increase prices for the public
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