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First and longest phase of mitosis, during which the chromosomes become visible and the centrioles separate and take up positions on the opposite sides of the nucleus.
One of two tiny structures located in the cytoplasm of animal cells near the nuclear envelope.
Second phase of mitosis, during which the chromosomes line up across the center of the cell.
The third phase of mitosis, during which the chromosome pairs separate and move toward opposite poles.
Fourth and final phase of mitosis, during which the chromosomes begin to disperse into a tangle of dense material.
One of a family of closely related proteins that regulate the cell cycle in eukaryotic cells.
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