Question

Which event does not occur during prophase in an animal cell?

• A. Nuclear envelope disperses
• B. Chromosomes replicate
• C. Spindle begins to form
• D. Chromosomes condense

Answer 1

The correct option is B Chromosomes replicate

The prophase is the first phase of mitosis or cell division.
In the prophase, the nuclear membrane disappears. It is followed by the initiation of condensation of the thread chromatid material into chromosomes.

The spindle fibres begin to appear.

In the metaphase, the chromosomes then align at the equatorial plane with their centromeres on the spindle fibres.

DNA replication takes place in the S phase of the interphase.

So, the correct option is 'Chromosomes replicate'.