In humans,sex determination is controlled by | vedclass

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(B) In humans,the sex of the child is determined by the father. Human females have $XX$ sex chromosomes,producing only $X$-bearing gametes (ova). Huma

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Genetic constitution of the sperm

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(B) In humans,the sex of the child is determined by the father. Human females have $XX$ sex chromosomes,producing only $X$-bearing gametes (ova). Human males have $XY$ sex chromosomes,producing two types of sperm: $50\%$ carrying the $X$ chromosome and $50\%$ carrying the $Y$ chromosome. If an $X$-bearing sperm fertilizes the ovum,the zygote becomes $XX$ (female). If a $Y$-bearing sperm fertilizes the ovum,the zygote becomes $XY$ (male). Thus,the genetic constitution of the sperm determines the sex of the offspring.

In humans,sex determination is controlled by which of the following?

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