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Evolution: CAIE A‑Level Biology questions

Every CAIE A-Level Biology exam question on 17.3 Evolution, June 2024 and the specimen papers, with its mark scheme and examiner’s report.

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240 questions

  1. Q1(b)(i)

    Specimen · Paper 4

    5 marks17.3 Evolution
    The whole paper ↗
    Specimen Paper 4, question 1(b)(i): With reference to Fig. 1.2, suggest why there is a large genetic difference between the two populations. [5]

  2. Q1(b)(ii)

    Specimen · Paper 4

    1 mark17.3 Evolution
    The whole paper ↗
    Specimen Paper 4, question 1(b)(ii): Name the type of speciation that is most likely to occur. [1] [Total: 11]

  3. Q2(a)(i)

    Specimen · Paper 5

    1 mark17.3 Evolution
    The whole paper ↗
    Specimen Paper 5, question 2(a)(i): Identify the dependent variable in this investigation. [1]

  4. Q2(a)(ii)

    Specimen · Paper 5

    1 mark17.3 Evolution
    The whole paper ↗
    Specimen Paper 5, question 2(a)(ii): Identify the variable that was controlled by the use of plastic bags on the flower stalks of species A. [1]

  5. Q2(b)

    Specimen · Paper 5

    3 marks16.1 Passage of information from parents to offspring17.3 Evolution
    The whole paper ↗
    Specimen Paper 5, question 2(b): Table 2.1 shows the results that the student obtained from counting the number of chromosomes in the cells of each of the hybrid embryo plants. Table 2.1 hybrid
All 5 questions on Evolution, as a list
  1. Specimen, Paper 4, Q1(b)(i) (5 marks): With reference to Fig. 1.2, suggest why there is a large genetic difference between the two populations. [5]
  2. Specimen, Paper 4, Q1(b)(ii) (1 mark): Name the type of speciation that is most likely to occur. [1] [Total: 11]
  3. Specimen, Paper 5, Q2(a)(i) (1 mark): Identify the dependent variable in this investigation. [1]
  4. Specimen, Paper 5, Q2(a)(ii) (1 mark): Identify the variable that was controlled by the use of plastic bags on the flower stalks of species A. [1]
  5. Specimen, Paper 5, Q2(b) (3 marks): Table 2.1 shows the results that the student obtained from counting the number of chromosomes in the cells of each of the hybrid embryo plants. Table 2.1 hybrid

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