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Questions  >>  CBSE XII  >>  Biology

Justify the situation that in human beings *** of the child is determined by father and not by mother ?

1 Answer

Male is heterogametic producing two kinds of sperms with X xhromosome and Y chromosome. Female is always homogametic producing eggs with X chromosome only. When a sperm bearing Y chromosome fertilizes the egg, it results in a male progeny and if the sperm bearing X chromosome fertilizes the egg, it results in a female progeny.
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