Mitosis is the division (and multiplication) by body cells or somatic cells (cells that arent gametes.) Gametes- sperm and egg; undergo meiosis Somatic cells- body cells; undergo mitosis. Both the daughter cells from mitosis are identical. First, the chromosomes of the parent cell replicate. The chromosomes from the mother line up from the corresponding chromosomes from the father cell (called sister chromosomes, these are the chromosomes with the same genes on them). The cell then divides with half the chromosomes going to each daughter cell. The chromosomes in each cell are exactly the same. Mitosis is used in repair and growth of the body.