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Question

Spindle fibres are made up of _______ protein.

A
tubulin
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B
actin
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C
flagellin
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D
RNA
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Solution

The correct option is A tubulin
Spindle fibres are formed during cell division from centrioles. They help in chromosome movement. They are composed of microtubules. Microtubules are made up of tubulin protein.

Actin filaments play a major role during animal cell division.

The flagella of bacterium is made up of flagellin protein.

RNA is a nucleic acid having major role during protein synthesis.

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