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Q.

Polypoidy is due to

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a

failure of segregation of chromatids

b

failure of cytokinesis after telophase stage

c

failure of formation of spindle fibres during cell division cycle

d

failure of cytokinesis after metaphase stage

answer is B.

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Detailed Solution

Polyploidy occurs due to failure of cytokinesis after telophase stage. This results in multiple chromosomal sets, 3n, 4n etc. It is commonly observed in plants.

Failure of segregation of chromatids during cell division results in aneuploidy.

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