The spindle checkpoint.


Every mitosis, replicated chromosomes must be accurately segregated into each daughter cell. Pairs of sister chromatids attach to the bipolar mitotic spindle during prometaphase, they are aligned at metaphase, then sisters separate and are pulled to opposite poles during anaphase. Failure to attach correctly to the spindle before anaphase onset results in unequal segregation of chromosomes, which can lead to cell death or disease. The spindle checkpoint is a surveillance mechanism that delays anaphase onset until all chromosomes are correctly attached in a bipolar fashion to the mitotic spindle.

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@article{Hardwick1998TheSC, title={The spindle checkpoint.}, author={K G Hardwick}, journal={Journal of cell science}, year={1998}, volume={119 Pt 20}, pages={4139-42} }