Question

What must happen to a chromosome before a cell starts mitosis? What must happen to a chromosome before a cell starts mitosis? A. The two chromatids of the chromosome must become attached to each other. B. Both molecules of DNA in the chromosome must be replicated. C. The chromatin of the chromosome must be completely condensed. D.The single DNA molecule in the chromosome must be replicated.

Answer 1

Answer:

The DNA must be replicated first to be a whole chromosome since at the previous division it was only a set of two "half" chromosomes.

Explanation:

Mitosis never replicates DNA which is split in half in a set pattern every replication to prevent mutations.