Select the correct option:Mitotic spindle is mainly composed of _____ proteins.

Tubulin

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Myosin

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Actin

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Actomyosin

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Solution

The correct option is A Tubulin
Spindle fibres are structures formed from microtubles in the cytoplasm during cell division. Microtubules are made up of tubulin protein. Spindle fibres move chromatids or chromosomes diametrically apart and gather then in two clusters at opposite ends (poles) of the cell.
So, the correct option is 'Tubulin'.

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