Biology 9700 · AS & A Level · Chromosome behaviour in mitosis

Chromosome behaviour in mitosis — practice question

Which row gives the correct description of a stage of mitosis?

  • Astage of mitosis: prophase; nuclear envelope disappears; centromeres replicate; spindle microtubules begin to form
  • Bstage of mitosis: metaphase; nuclear envelope not present; centromeres move to the poles of the cell; spindle microtubules fully formed
  • Cstage of mitosis: anaphase; nuclear envelope begins to reform; centromeres split into two; some spindle microtubules shorten
  • Dstage of mitosis: telophase; nuclear envelope reforms; centromeres at maximum distance from cell equator; spindle microtubules break down

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