name the sex chromosomes in human male and female
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The last 23rd pair of chromosome is known as sex chromosome.It is same in girl but different in boys.
Girl Child = 44+XX
Boy Child = 44+XY
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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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