Q.

Which of the following statements is not true for a pair of homologous chromosomes?

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a

Both the homologous chromosomes of a pair are contributed by either of the parents.

b

They usually contain slightly different versions of the same genetic information.

c

They segregate from each other during meiosis I.

d

They synapse during meiosis I.

answer is A.

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Detailed Solution

Each parent cell contributes to one homologous chromosome of a pair.Homologous chromosomes contain either the same or different alleles of the same genes.Homologous chromosomes segregate from each other during Anaphase -I of meiosis.During zygotene (meiosis I), homologous chromosomes start pairing together and this process of association is called synapsis.
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