Reciprocal exchange of genetic material between non-sister chromatids. Mitosis is a form of eukaryotic cell division that produces two daughter cells with the same genetic component as the stem cell. Chromosomes replicated during S phase are divided in such a way as to ensure that each daughter cell receives a copy of each chromosome. In actively dividing animal cells, the entire process lasts about an hour.
Duplicate nuclear material is called chromatin. The rupture of the nuclear envelope frees sister chromatids from the nucleus, which is necessary to separate the nuclear material into two cells.