they both produce new cells(apex)
they both have prophase and metaphase (anaphase)
They both involve duplicating chromosomes.
they both have simular steps.
DNA polymerase links the two chains which was formed during replication.
DNA is replicated during the S phase of the cell cycle. If DNA is not replicated then the new cell will not have a copy of the DNA. If it does not have a copy of the DNA, then the cell will not be able to function properly.