Multiple choice

In which of the following stages of mitosis do the fibres cross the cell to form the mitotic spindle?

  1. Interphase

  2. Prophase

  3. Prometaphase

  4. Metaphase

  5. Anaphase

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Chromatin in the nucleus begins to condense and becomes visible in the light microscope as chromosomes. The nucleolus disappears. Centrioles begin moving to opposite ends of the cell and fibres extend from the centromeres. Some fibres cross the cell to form the mitotic spindle.