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Chromosome Structure and Biology - Class XI
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During cell division, spindle fibers attach to which part of chromosomes?
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A
Primary constriction
💡 Explanation:
During cell division, spindle fibers attach to primary constriction of the chromosomes. Spindle fibres are mainly composed of microtubules which contract and relax to align the chromosomes at a particular orientation.
So, the correct answer is option A.