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Q32:-how is the chromosome number restored after sexual reproduction?

Answer»

The constancy is maintained because the cells in all these three structures undergo only mitotic divisions.

Explanation:The parents are diploid (2n) as each of them has two sets of chromosomes. They form haploid (1n) male and female gametes through the process of meiosis. The haploid gametes have one set of chromosomes. Since these two gametes fuse during fertilisation, the original number of chromosomes is restored in the offspring.



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