Q. 44.5( 4 Votes )

Why do all the gametes formed in human females have an X chromosome?

Answer :

In human females, there are 23 pairs of chromosomes. Out of which 22 is autosome chromosomes and one pair is sex chromosome i.e., two X chromosomes. During gametogenesis, each gamete formed by females contain only the X chromosome (22 A + X ). Hence, all female gametes in humans have X chromosome.

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Lakhmir Singh & Manjit Kaur- Biology