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spindle
A body formed within a cell at mitosis or meiosis, which takes parts in the distribution of chromatids to the two daughter cells. It is composed of a gel and is commonly but not always ellipsoidal in shape. The spindle appears at metaphase, and chromosomes become arranged at its equator. It contains many microtubules, some running from spindle-attachments, or centromeres to one spindle pole, others from pole to pole. The microtubules are responsible for movement apart of the chromatids during anaphase. See mitotic spindle for more details.
Related category
• CELL BIOLOGY
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