CELL STRUCTURES AND FUNCTION
CELL CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A spindle fiber is a specialized form of
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microtubule
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centrosome
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centriole
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chromosome
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Explanation:
Detailed explanation-1: -Spindle fibers are made up of microtubules. Microtubules are polymers of alpha-and beta-tubulin dimers. Microtubules that form the spindle fibers come from centrosomes, which are organelles located in opposite poles near the nucleus.
Detailed explanation-2: -Explanation: Spindle fibers are specialized microtubule structures that guide the movement of chromosomes and chromatids during mitosis.
Detailed explanation-3: -Astral microtubules anchor the spindle poles to the cell membrane. Microtubule polymerization is nucleated at the microtubule organizing center.
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