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X (egg cell) + X (sperm cell) = XX, i.e., female, or. X (egg cell) + Y (sperm cell) = XY, i.e., male. Basically, the possibility of a boy or a girl may be taken as 50% each for almost everyone. According to a study conducted on mice, a baby is genetically more like the father, than the mother. The reason for this being the DNA passed down from ...
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