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14/09/2021 4:09 pm
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How is the sex of a child determined in human beings?
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14/09/2021 4:11 pm
Sex Chromosomes: A male has XY sex chromosome and produces two types of sperms; 50% of them carrying X chromosomes and another 50% carrying the Y chromosomes. A female carries XX sex chromosomes and hence produces only X – carrying eggs. If X-carrying egg fuses with the X -carrying sperm, the child born will be a girl. If X – carrying egg fuses with the Y carrying sperm, the child born will be a boy.