Question

In order for the microtubules to pull sister chromatids to opposites poles of the cell, they must be destabilised. What term is given to the constant polymerisation and depolymerisation of microtubules during mitosis?​

Answer 1

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Catastrophe✔✔✔

M-Cdks, which help regulate the cell cycle, become active at the end of G2 phase, triggering mitosis (M phase).

M-Cdk inactivates MAPs (microtubule associates proteins) which otherwise stabilise the microtubules, and activate catastrophin, which increases microtubule catastrophe.

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Answer 2

I guess your correct answer should be catastrophe.

( Not sure about the answer)