Suppose that during anaphase the centromeres did not split and the chromatids did not separate?

If the centromeres did not split and the chromatids did not separate during anaphase, the cell would not become stretched. Also, the cell would be unable to go onto the next stage of mitosis, telophase, in which the chromosomes begin to stretch out and lose their rod-like appearance. The cell would remain as one, and be unable to split.

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