A Levels Biology (9700)•9700/13/M/J/19

Explanation
Identifying mitosis stage and cell type by diagram features
Steps:
- Observe chromosome positions: separated chromatids moving to poles indicate anaphase, not metaphase alignment.
- Check for centrioles and cleavage furrow: presence confirms animal cell division.
- Note absence of cell wall or cell plate: rules out plant cell characteristics.
- Verify stage specifics: no equatorial lineup eliminates metaphase.
Why C is correct:
- Anaphase in animal cells features sister chromatids pulling apart to opposite poles via spindle fibers from centrioles, without cell walls.
Why the others are wrong:
- A: Plant cells show cell walls and eventual cell plate formation, absent here.
- B: Metaphase aligns chromosomes at the equator, not separating them.
- D: Animal metaphase displays central chromosome alignment, not poleward movement.
Final answer: C
Topic: Chromosome behaviour in mitosis
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