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Unformatted text preview: for the creation of new organisms. In multi-cellular organisms, like ourselves, mitosis only occurs in somatic cells, which comprise all cells in an organism excluding germ cells. Figure %: Events of mitosis. Cells that undergo mitosis duplicate their chromosomes, resulting in cells with two times their normal haploid or diploid numbers (4 N chromosomes). Newly-synthesized chromosomes remain closely associated with their like-chromosome. These two identical chromosomes are called sister chromatids. Once duplicated, sister chromatids separate such that one copy of each chromosome lines up on opposite ends of the cell. The cell then pinches in the center until it breaks into two different cells. A nucleus then forms around the chromosomes in each cell to yield two cells with the same original number of chromosomes as the preexisting cell....
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