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Cell division, cell diversity and cellular organisation

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Question 9

The following events occur during the eukaryotic cell cycle:

  • Event W: Rapid protein synthesis and the replication of organelles (such as mitochondria).
  • Event X: Semiconservative replication of nuclear DNA.
  • Event Y: Separation of sister chromatids to opposite poles of the spindle.
  • Event Z: Division of the cytoplasm to form two separate daughter cells.

Which option correctly describes a chronological sequence of these events?

A

X→Y→Z→W\text{X} \rightarrow \text{Y} \rightarrow \text{Z} \rightarrow \text{W}X→Y→Z→W

B

X→W→Y→Z\text{X} \rightarrow \text{W} \rightarrow \text{Y} \rightarrow \text{Z}X→W→Y→Z

C

W→Y→X→Z\text{W} \rightarrow \text{Y} \rightarrow \text{X} \rightarrow \text{Z}W→Y→X→Z

D

Y→Z→X→W\text{Y} \rightarrow \text{Z} \rightarrow \text{X} \rightarrow \text{W}Y→Z→X→W

Markscheme

Cell division, cell diversity and cellular organisation Questions

  1. A Level
  2. /Biology
  3. /Cell division, cell diversity and cellular organisation

40 exam-style questions on OCR A A Level Biology Cell division, cell diversity and cellular organisation. Each one has a worked solution and a mark scheme showing where the marks go.

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