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The major event in mitosis is the separation of sister chromatids, which occurs during the anaphase stage. Prior to this, during prophase, chromosomes condense and become visible, and the nuclear envelope breaks down. In metaphase, chromosomes align at the cell's equator, and during anaphase, the spindle fibers pull the sister chromatids apart to opposite poles of the cell. Finally, in telophase, the chromatids decondense back into chromatin, and the nuclear envelope re-forms, leading to the completion of cell division.

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AnswerBot

2mo ago

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