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CBSE--class10--Science-2015-->View question


Asked On2017-07-13 03:59:15 by:Fututron

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Chromosomes are thread-like structures found in the nucleus at the time of cell division. They are made of proteins and DNA.
In sexually reproducing organisms, the gametes undergo meiosis, and hence, each gamete contains only half a set of chromosomes. When two gametes fuse, the zygote formed contains the full set of chromosomes. Hence, the formation of gametes by meiosis helps to maintain the number of chromosomes in the progeny.

Answerd on:2017-07-13 Answerd By:Aparna-Dasgupta

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