Explain how the original number of chromosomes present in the parents are restored in the progeny. Name the cell division by which chromosome number is maintained in the progeny.

Question

TextDNA Copying and Variation in ReproductionCBSE PYQ

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What are chromosomes ?

Explain in brief how stability of DNA content of a species is ensured in sexually reproducing organisms ?

Explain how equal genetic contribution of male and female parents is ensured in the progeny.

Offsprings formed as a result of sexual reproduction produce more variations because

What is the importance of DNA copying in reproduction?

Why is DNA copying an essential part of the process of reproduction?