Explain how, sex is determined in human babies.
BiologyClass 10ICSEAnswered 27 Mar 2026
Answer
Answer
There are two types of sex chromosomes, the X chromosome and the Y chromosome. XX determines the male and XY determines the female. The sex of a person is determined at the time of fertilization. If the father contributes X chromosome during fertilization through his sperm, then the baby born will be a girl. On the other hand, if chromosome Y is contributed through his sperm, then the new born will be a boy.
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