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How is the sex of the child determined i...

How is the sex of the child determined in human beings?

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In human beings, sex of the child depends upon which kind of male gamete fertilises the female gamete. If sperm carrying X chromosomes fertilises the ovum carrying X chromosome, then the child born will be a girl. If a sperm carrying Y chromosome fertilises the ovum which carries X chromosome, then the child born will be a boy.
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