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.