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Chromosomes, genes and proteins: CAIE IGCSE Biology questions

Every CAIE IGCSE Biology exam question on 17.1 Chromosomes, genes and proteins, June 2024 and the specimen papers, with its mark scheme and examiner’s report.

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346 questions

  1. Q31

    Specimen · Paper 1

    1 mark17.1 Chromosomes, genes and proteins
    The whole paper ↗
    Specimen Paper 1, question 31: The information shows what happens during some of the stages of sexual reproduction in a human. egg + sperm → fertilised egg → male embryo Which sex chromosomes

  2. Q30

    Specimen · Paper 2

    1 mark17.1 Chromosomes, genes and proteins
    The whole paper ↗
    Specimen Paper 2, question 30: What is the role of messenger RNA (mRNA)? A assembles amino acids into protein molecules B moves a copy of the gene from the nucleus to the cytoplasm C controls

  3. Q5(d)(i)

    Specimen · Paper 3

    1 mark17.1 Chromosomes, genes and proteins
    The whole paper ↗
    Specimen Paper 3, question 5(d)(i): State all the possible sex chromosomes that normal sperm can contain. [1]

  4. Q5(d)(ii)

    Specimen · Paper 3

    2 marks17.1 Chromosomes, genes and proteins
    The whole paper ↗
    Specimen Paper 3, question 5(d)(ii): Complete the definition of the term gene. Use words from the list. Each word can only be used once or not at all. carbohydrate DNA fat nuclei protein A gene is

  5. Q6(b)(iii)

    Specimen · Paper 4

    1 mark17.1 Chromosomes, genes and proteins
    The whole paper ↗
    Specimen Paper 4, question 6(b)(iii): State the name of the structure in plant cells where process D occurs. [1]
All 5 questions on Chromosomes, genes and proteins, as a list
  1. Specimen, Paper 1, Q31 (1 mark): The information shows what happens during some of the stages of sexual reproduction in a human. egg + sperm → fertilised egg → male embryo Which sex chromosomes
  2. Specimen, Paper 2, Q30 (1 mark): What is the role of messenger RNA (mRNA)? A assembles amino acids into protein molecules B moves a copy of the gene from the nucleus to the cytoplasm C controls
  3. Specimen, Paper 3, Q5(d)(i) (1 mark): State all the possible sex chromosomes that normal sperm can contain. [1]
  4. Specimen, Paper 3, Q5(d)(ii) (2 marks): Complete the definition of the term gene. Use words from the list. Each word can only be used once or not at all. carbohydrate DNA fat nuclei protein A gene is
  5. Specimen, Paper 4, Q6(b)(iii) (1 mark): State the name of the structure in plant cells where process D occurs. [1]

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