Science, asked by narasimhulunar15, 2 days ago

how does sex déterminations happen in human ?

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Answered by Anonymous

Answer:

Chromosomal sex is determined at the time of fertilization; a chromosome from the sperm cell, either X or Y, fuses with the X chromosome in the egg cell. Gonadal sex refers to the gonads, that is the testis or ovaries, depending on which genes are expressed.

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