_________ is the site of attachment of spindle fibres to sister chromatids during mitosis.

Kinetochore

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Centrosome

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Centriole

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Centromere

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Solution

The correct option is A Kinetochore
Spindle fibres attach to the kinetochore protein present on either side of the centromere of the chromosomes. Spindle fibres help to move the daughter chromosomes to opposite poles.

Centrosomes are present near the nucleus in the cytoplasm of all animal cells. Each centrosome consists of two centrioles lying perpendicular to each other. The position of centrioles decides the plane of division of cells.

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