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

Chromosome behaviour in mitosis — practice question

A student examined the cells in the growing region (meristem) of an onion root and recorded the results shown. Stage and number of cells: interphase: 886 prophase: 73 metaphase: 16 anaphase: 14 telophase: 11 What percentage of the cells have chromosomes that are visible as two chromatids?

  • A7.3%
  • B8.9%
  • C95.9%
  • D97.5%

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI