What happens to DNA during mitosis?

ProphaseThe chromatin wraps around the histones to become condensed. This is where the chromosomes first become visible.MetaphaseThe chromosomes line up on the equator of the cell and the spindle starts to form.AnaphaseThe spindle attaches to the centromere. The sister chromatids are separated and pulled to opposite poles.TeleophaseThe nuclear envelope forms around the chromatids at each pole.