How sex (gender) of a child is determined in human beings?
arshad4286:
Plz ask your parents "how you can understand l am boy or girl when l born? "
Oh, sorry
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=>Here is ur Answer<=
In human beings the sex of the child depends on whether the paternal chromosome is X ( for girls) or Y (for boys).
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because a male has two chromosome X and Y and a female has both X when the X and X chromosome meet the girl and when X and Y meet then boy formed
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