Q45 of 290 Page 169

Explain how, off springs and parents of organisms reproducing sexually have the same number of chromosomes.

The gametes have half number of chromosomes as compared to that normal body cells. Reduction division (meiosis) takes place during gamete formation which halves the number of chromosomes in both male and female gametes. The original chromosome number (as in parent) is restored after fertilisation in sexual reproduction.


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