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Passage of information from parents to offspring: CAIE A‑Level Biology questions

Every CAIE A-Level Biology exam question on 16.1 Passage of information from parents to offspring, June 2024 and the specimen papers, with its mark scheme and examiner’s report.

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240 questions

  1. Q6(a)(i)

    June 2024 · Paper 4

    1 mark16.1 Passage of information from parents to offspring
    The whole paper ↗
    June 2024 Paper 4, question 6(a)(i): Homologous chromosomes have the same genes located at the same loci. State one other feature shared by homologous chromosomes. [1]

  2. 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

  3. Q2(c)(i)

    Specimen · Paper 5

    1 mark16.1 Passage of information from parents to offspring
    The whole paper ↗
    Specimen Paper 5, question 2(c)(i): In a second investigation, the student repeated the procedure to hybridise the grasses. •• After hybridising the grasses, 50 grains containing hybrid embryo pla

  4. Q2(c)(ii)

    Specimen · Paper 5

    1 mark16.1 Passage of information from parents to offspring
    The whole paper ↗
    Specimen Paper 5, question 2(c)(ii): The student concluded that hybrids from cross A × B could not be bred successfully. State one piece of evidence in Table 2.2 that supports this conclusion. [1]
All 4 questions on Passage of information from parents to offspring, as a list
  1. June 2024, Paper 4, Q6(a)(i) (1 mark): Homologous chromosomes have the same genes located at the same loci. State one other feature shared by homologous chromosomes. [1]
  2. 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
  3. Specimen, Paper 5, Q2(c)(i) (1 mark): In a second investigation, the student repeated the procedure to hybridise the grasses. •• After hybridising the grasses, 50 grains containing hybrid embryo pla
  4. Specimen, Paper 5, Q2(c)(ii) (1 mark): The student concluded that hybrids from cross A × B could not be bred successfully. State one piece of evidence in Table 2.2 that supports this conclusion. [1]

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