Eukaryotic organisms enlarge and become bigger because of cell division. The diagram shows several stages of mitosis, with one stage absent, marked X. What happens in stage X?
- ASpindle fibres attach to the centromeres and the chromosomes line up along the equator.
- BThe chromatin coils and condenses and the nuclear membrane disintegrates.
- CThe chromosomes line up in pairs along the equator of the cell.
- DMicrotubules shorten so that spindle fibres contract and the centromeres divide.