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Gene technology: Edexcel A‑Level Biology B questions

Every Edexcel A-Level Biology B exam question on 7.4 Gene technology, 2016–2025, with its mark scheme and examiner’s report.

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1,826 questions

  1. Q4(b)(iv)

    June 2025 · Paper 3

    3 marks7.4 Gene technology
    The whole paper ↗
    June 2025 Paper 3, question 4(b)(iv): In 2009, scientists successfully used gene technology on some squirrel monkeys unable to see the colour red. The scientists identified the gene for the protein

  2. Q8(d)(i)

    June 2024 · Paper 1

    2 marks7.4 Gene technology
    The whole paper ↗
    June 2024 Paper 1, question 8(d)(i): State the meaning of the term ‘knockout’ mice, as used in this context. . (2)

  3. Q8(d)(ii)

    June 2024 · Paper 1

    3 marks7.4 Gene technology
    The whole paper ↗
    June 2024 Paper 1, question 8(d)(ii): In an investigation, female mice and ‘knockout’ mice were housed together. Describe how this investigation should be designed to confirm that protein G affects

  4. Q3(a)(i)

    June 2023 · Paper 3

    1 mark7.4 Gene technology
    The whole paper ↗
    June 2023 Paper 3, question 3(a)(i): Name the enzyme used in Step C. (1)

  5. Q3(a)(ii)

    June 2023 · Paper 3

    1 mark7.4 Gene technology
    The whole paper ↗
    June 2023 Paper 3, question 3(a)(ii): Name the vector in this process. (1)

  6. Q3(c)

    June 2023 · Paper 3

    3 marks7.4 Gene technology
    The whole paper ↗
    June 2023 Paper 3, question 3(c): Explain how herbicide resistance would improve the yield of GM soya bean plants compared to non‑GM soya bean plants. (3)

  7. Q3(b)

    June 2022 · Paper 1

    3 marks7.4 Gene technology
    The whole paper ↗
    June 2022 Paper 1, question 3(b): One group of scientists has genetically modified a fungus to produce a spider toxin that kills mosquitoes. Describe how a fungus could be genetically modified t

  8. Q7(b)

    June 2019 · Paper 3

    4 marks7.4 Gene technology
    The whole paper ↗
    June 2019 Paper 3, question 7(b): Describe how soya bean plants can be genetically modified to produce large numbers of GM soya bean plants. (4)

  9. Q9(a)

    June 2018 · Paper 1

    3 marks7.4 Gene technology
    The whole paper ↗
    June 2018 Paper 1, question 9(a): In the 2012 to 2013 growing season, production of soya beans was highest in the United States and second highest in Brazil. The United States produced 93 millio

  10. Q9(b)(i)

    June 2018 · Paper 1

    6 marks7.4 Gene technology
    The whole paper ↗
    June 2018 Paper 1, question 9(b)(i): Analyse the data to assess the nutritional content of soya beans from transgenic and from non-transgenic soya bean plants grown in these two regions. (6)

  11. Q9(b)(iii)

    June 2018 · Paper 1

    2 marks7.4 Gene technology
    The whole paper ↗
    June 2018 Paper 1, question 9(b)(iii): Explain why this study also analysed the types of fatty acid found in soya beans from transgenic plants and from non-transgenic plants. (2)

  12. Q6(b)(ii)

    June 2017 · Paper 3

    4 marks7.4 Gene technology
    The whole paper ↗
    June 2017 Paper 3, question 6(b)(ii): Scientists have suggested that genetically modified (GM) mosquitoes could be used to help combat the spread of the Zika virus. Mosquito eggs are injected with D
All 12 questions on Gene technology, as a list
  1. June 2025, Paper 3, Q4(b)(iv) (3 marks): In 2009, scientists successfully used gene technology on some squirrel monkeys unable to see the colour red. The scientists identified the gene for the protein
  2. June 2024, Paper 1, Q8(d)(i) (2 marks): State the meaning of the term ‘knockout’ mice, as used in this context. . (2)
  3. June 2024, Paper 1, Q8(d)(ii) (3 marks): In an investigation, female mice and ‘knockout’ mice were housed together. Describe how this investigation should be designed to confirm that protein G affects
  4. June 2023, Paper 3, Q3(a)(i) (1 mark): Name the enzyme used in Step C. (1)
  5. June 2023, Paper 3, Q3(a)(ii) (1 mark): Name the vector in this process. (1)
  6. June 2023, Paper 3, Q3(c) (3 marks): Explain how herbicide resistance would improve the yield of GM soya bean plants compared to non‑GM soya bean plants. (3)
  7. June 2022, Paper 1, Q3(b) (3 marks): One group of scientists has genetically modified a fungus to produce a spider toxin that kills mosquitoes. Describe how a fungus could be genetically modified t
  8. June 2019, Paper 3, Q7(b) (4 marks): Describe how soya bean plants can be genetically modified to produce large numbers of GM soya bean plants. (4)
  9. June 2018, Paper 1, Q9(a) (3 marks): In the 2012 to 2013 growing season, production of soya beans was highest in the United States and second highest in Brazil. The United States produced 93 millio
  10. June 2018, Paper 1, Q9(b)(i) (6 marks): Analyse the data to assess the nutritional content of soya beans from transgenic and from non-transgenic soya bean plants grown in these two regions. (6)
  11. June 2018, Paper 1, Q9(b)(iii) (2 marks): Explain why this study also analysed the types of fatty acid found in soya beans from transgenic plants and from non-transgenic plants. (2)
  12. June 2017, Paper 3, Q6(b)(ii) (4 marks): Scientists have suggested that genetically modified (GM) mosquitoes could be used to help combat the spread of the Zika virus. Mosquito eggs are injected with D

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