The sex of a child is determined by whom?

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Question

(B) In humans,the sex of the child is determined by the sex chromosomes present in the sperm. Females have $XX$ chromosomes,and males have $XY$ chromo

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Father

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(B) In humans,the sex of the child is determined by the sex chromosomes present in the sperm. Females have $XX$ chromosomes,and males have $XY$ chromosomes. During fertilization,the mother always contributes an $X$ chromosome through the ovum. The father can contribute either an $X$ or a $Y$ chromosome through the sperm. If the sperm carrying the $X$ chromosome fertilizes the egg,the child will be female $(XX)$. If the sperm carrying the $Y$ chromosome fertilizes the egg,the child will be male $(XY)$. Therefore,the father is responsible for determining the sex of the child.

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