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What are asters made of?

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in Biology – Class 11 by (272k points)
What are asters made of?

(a) Collagen

(b) Intermediate filaments

(c) Actin fibers

(d) Microtubules

The question was posed to me in exam.

My question is based upon Cell Cycle and Division topic in division Cell Cycle and Cell Division of Biology – Class 11

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Right option is (d) Microtubules

For explanation I would say: Asters are made out of microtubules, which are a type of cytoskeletal proteins of the cell. Asters radiate from centrosomes on the opposite poles of the cells during the M phase of cell division.

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