Why is it necessary for dna to replicate before mitosis begins

Mitosis is the process of cells splitting in order to duplicate and reproduce. If DNA is not completely replicated before it is split, the daughter cells won't have a complete strand of DNA there won't be enough chromosomes in your somatic (body) cells and would result in you having a disability.

Explanation:

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.

i think its white blood cells

i hope this