A type of cell division in which the chromosomes within the nucleus of a cell are exactly duplicated into each of 2 daughter cells. Before cell division, the chromosomes duplicate themselves and coil up with the 2 copies joined together. The doubled chromosomes line up in the centre of the cell and are pulled apart to opposite ends of the cell, which then divides. Each daughter cell therefore has the same chromosome content as the original cell. (See also meiosis.)
Mitosis |
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