Question

extension of centriole during cell division

Answer 1

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here is your answer

At the beginning of nucleardivision, two wheel-shaped protein structures called centriolesposition themselves at opposite ends of the cell forming cell poles. Long protein fibers calledmicrotubules extend from thecentrioles in all possible directions, forming what is called a spindle.

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Answer 2

happens in the centrosomes in cytoplasma for mitosis in interphase

hope it helps wid luv - gaurankush