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Why mother is not responsible for determine the sex of a baby |
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Answer» However, in women, you just can't predict it," Mr Gellatly explains. Men determine the sex of a baby depending on whether their SPERM is CARRYING an X or Y CHROMOSOME. An X chromosome combines with the mother's X chromosome to make a baby GIRL (XX) and a Y chromosome will combine with the mother's to make a boy (XY). |
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