Cells divide in a series of stages called the cell ____. This takes place in ____ stages: 1. This is the longest stage. The cells grow bigger and ____ the number of sub-cellular structures such as ____, chloroplasts and mitochondria. The DNA ____ to form ____ copies of each chromosome. 2. This is ____. One set of chromosomes is pulled to each end of the cell and the ____ divides. 3. This is the stage during which the ____ and the cell ____ also divide to form two ____ daughter cells. Cell division by mitosis is important in the ____ and development of multicellular organisms.

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