Kinetochore

kinetochore is the specialized proteinaceous part of the centromere to which the spindle fibres attach.

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The centromere is composed of kinetochore fibers which attach to the spindle fibers.

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As what MrMistery said, the spindle fibers actually attach to the kinetochore which are located within the centromere.

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the centromere is a region of the chromosome. The kinetochore is a specialized structure that attaches to the spindle. The spindle microtubules directly attach to the kinetochore.

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I'm confused. During mitosis are spindles attached to centromeres or kinetochore of a chromatid? Some information I read says on, some says the other and then I've also read that spindles attach to both. Is this possible?

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