plumiSelective breeding: Edexcel International GCSE Biology questions
Every Edexcel International GCSE Biology exam question on Selective breeding (specification points 5.10–5.11), 2019–2025, with its mark scheme and examiner’s report.
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Calculations
Q9(b)
The whole paper ↗Q2(e)
The whole paper ↗Q9(a)
The whole paper ↗Q9(b)
The whole paper ↗Q9(c)(i)
The whole paper ↗Q6(a)(i)
The whole paper ↗Q3(c)(ii)
The whole paper ↗Q8(b)(iv)
The whole paper ↗Q9(a)
The whole paper ↗Q9(b)(i)
The whole paper ↗Q9(b)(ii)
The whole paper ↗Q9(b)(iii)
The whole paper ↗Q4(a)
The whole paper ↗Q1(b)
The whole paper ↗Q1(c)(i)
The whole paper ↗Q1(c)(ii)
The whole paper ↗Q1(d)
The whole paper ↗Q1(e)
The whole paper ↗Q1(f)
The whole paper ↗
All 19 questions on Selective breeding, as a list
- June 2025, Paper 1, Q9(b) (2 marks): Scientists can also produce new varieties of plants by selective breeding. Give two differences between the use of genetic modification and selective breeding t
- June 2024, Paper 1, Q2(e) (3 marks): A farmer has two varieties of a plant species. One variety has a red flower colour and no scent. The other variety has a white flower colour and a perfumed scen
- November 2023, Paper 1, Q9(a) (3 marks): Explain why selective breeding with crop plants is easier and quicker than selective breeding with farm animals. (3)
- November 2023, Paper 1, Q9(b) (4 marks): Selective breeding in cattle has been used to improve features such as higher milk yield, longer life and increased muscle mass. Describe how selective breeding
- November 2023, Paper 1, Q9(c)(i) (2 marks): Suggest why an animal with a calmer temperament may be more suitable for the farmer on a dairy farm. (2)
- June 2023, Paper 2, Q6(a)(i) (2 marks): Describe how selective breeding can produce snapdragon plants with brightly coloured flowers. (2)
- January 2023, Paper 2, Q3(c)(ii) (2 marks): Describe how a farmer could use selective breeding to increase the height of cattle. (2)
- January 2023 (R), Paper 1, Q8(b)(iv) (3 marks): Dog breeders use selective breeding to try to remove harmful alleles from dog breeds. Explain how selective breeding could be used to remove the allele for sens
- June 2022, Paper 1, Q9(a) (3 marks): Describe how scientists could use selective breeding to increase wheat yield. (3)
- June 2022, Paper 1, Q9(b)(i) (5 marks): Plot a line graph to show how the mean yield changes from 1840 to 2020. Use a ruler to join the points with straight lines. (5)
- June 2022, Paper 1, Q9(b)(ii) (3 marks): In 1960, a dwarf variety of wheat replaced the old variety. Scientists compared the percentage change in yield for the two varieties. The percentage change in y
- June 2022, Paper 1, Q9(b)(iii) (3 marks): Dwarf wheat has a shorter, thicker stem than the old variety. Suggest why growing dwarf wheat is an advantage for farmers. (3)
- January 2022, Paper 2, Q4(a) (2 marks): Selective breeding is often used to produce fish that grow rapidly and do not waste much food. Explain how selective breeding can be used to produce fish that g
- November 2020 (R), Paper 2, Q1(b) (2 marks): Read the passage below. Use the information in the passage and your own knowledge to answer the questions that follow. Toystory Toystory is a bull who was born
- November 2020 (R), Paper 2, Q1(c)(i) (1 mark): Read the passage below. Use the information in the passage and your own knowledge to answer the questions that follow. Toystory Toystory is a bull who was born
- November 2020 (R), Paper 2, Q1(c)(ii) (1 mark): Read the passage below. Use the information in the passage and your own knowledge to answer the questions that follow. Toystory Toystory is a bull who was born
- November 2020 (R), Paper 2, Q1(d) (2 marks): Read the passage below. Use the information in the passage and your own knowledge to answer the questions that follow. Toystory Toystory is a bull who was born
- November 2020 (R), Paper 2, Q1(e) (3 marks): Read the passage below. Use the information in the passage and your own knowledge to answer the questions that follow. Toystory Toystory is a bull who was born
- November 2020 (R), Paper 2, Q1(f) (2 marks): Read the passage below. Use the information in the passage and your own knowledge to answer the questions that follow. Toystory Toystory is a bull who was born
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