A: Polyploids with an odd number of chromosom | vedclass

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(A) Polyploids with an odd number of chromosomes (e.g.,triploids,$3n$) often face difficulties during meiosis because homologous chromosomes cannot pa

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Assertion and Reason both are correct and Reason is the correct explanation of Assertion.

Vedclass · Answer

(A) Polyploids with an odd number of chromosomes (e.g.,triploids,$3n$) often face difficulties during meiosis because homologous chromosomes cannot pair correctly.This leads to the production of unbalanced gametes,which results in sterility and the absence of seed formation.Since these plants cannot reproduce sexually through seeds,they must be propagated vegetatively to maintain the population.Therefore,both the Assertion and the Reason are correct,and the Reason explains why vegetative propagation is necessary.

$A$: Polyploids with an odd number of chromosomes are propagated vegetatively.
$R$: Seed formation is absent due to meiotic abnormality.

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$A$: Polyploids with an odd number of chromosomes are propagated vegetatively.$R$: Seed formation is absent due to meiotic abnormality.