Gender Determination
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What are the chances of having a girl or a boy? Do they ever change?
50% girl 50% boy. No
How is gender determined?
Gender is determined by seeing if a baby has a pair of XY chromosomes or XX
Which parent determines the sex of the baby?
The father, because the father has a X sperm and Y sperm. If the X sperm goes into the X egg, then the baby will be a female. If the Y sperm goes into the X egg, then it will be a male.