Question

Explain the method of sex determination in human please fast it's urgent ?

Answer 1

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In the XY sex-determination system, the female-provided ovum contributes an X chromosome and the male-provided sperm contributes either an X chromosome or a Y chromosome, resulting in female (XX) or male (XY) offspring, respectively. Hormone levels in the male parent affect the sex ratio of sperm in humans.
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Answer 2

male has x as well as y chromosome but female has only x chromosome.

If x chromosome is contributed from father then child would be girl but if y chromosome is contributed from father then child would be boy