D2.1 Cell and nuclear division

D2.1 Cell and nuclear division Quiz

IB Biology SL: Quiz

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  1. 1. A cell has chromosomes lined up across its equator. Which phase is it in?

    • A. Prophase
    • B. Metaphase
    • C. Anaphase
    • D. Telophase

  2. 2. A cell with 2n = 20 is in metaphase of mitosis. How many chromatids does it contain?

    • A. 10
    • B. 20
    • C. 40
    • D. 80

  3. 3. Which proteins form the contractile ring in animal cell cytokinesis?

    • A. Histones
    • B. Actin and myosin
    • C. Tubulin only
    • D. Cellulose

  4. 4. What happens during meiosis I?

    • A. Sister chromatids separate
    • B. Homologous chromosomes separate
    • C. DNA is replicated
    • D. Four diploid cells form

  5. 5. How many chromosome combinations can random orientation give in an organism with n = 4?

    • A. 4
    • B. 8
    • C. 16
    • D. 32

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