How many sex chromosomes does a male embryo have? > 자유게시판

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An embryo, male or female, usually has two sex chromosomes, one from mom, one from dad. In a male's case, they would be XY.

Rarely, nondisjunction occurs, and a child winds up XXX, XXY, XYY, or X. For more info about xxx mom son fuck HD movies take a look at our web-page. xxx mom son fuck HD movies and X become female, and XXY and XYY become male. So, it is theoretically possible for a male embryo to have three sex chromosomes.