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AP®BiologyCollege BoardExam QuestionsUnit 4: Cell Communication & Cell CycleCell Cycle

Cell Cycle (College Board AP® Biology): Exam Questions

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Cell Cycle

1a1 mark

Figure 1 shows the chromosomes of a cell at different stages during mitosis.

Series of abstract shapes: two coiled, two elongated with twists, one dense with a labelled 'X', possibly representing different molecular structures.
Figure 1. The chromosomes during different stages of mitosis.

Letter X in Figure 1 indicates chromosomes that are in prophase of mitosis.

Identify the phase of the cell cycle that takes place immediately before prophase.

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1b1 mark

Label Figure 1 with the letter Y to represent the set of chromosomes that are in anaphase of mitosis.

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1c1 mark

Explain how the behaviour of chromosomes during anaphase enables accurate genome transmission.

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1d1 mark

State the role of mitosis in living organisms.

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