"It is a matter of chance with a couple will give birth to a baby girl or boy". Justify your statement and support your answer with neat explanation ?
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It depends on which chromosome the sperm contributes in fertilisation.If the sperm contributes an x chromosome to the egg which already has a x chromosome,the zygote will have 2 x chromosomes resulting in a girl child.If the sperm contributes a y chromosome,then the zygote will have an x and a y chromosome resulting in a male child.
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aap ko mene inst par dekha ha sachi me
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