A man receives his X chromosome from | vedclass

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(A) In humans,the male sex chromosome constitution is $XY$. During fertilization,the father contributes either an $X$ or a $Y$ chromosome to the offsp

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His mother only

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(A) In humans,the male sex chromosome constitution is $XY$. During fertilization,the father contributes either an $X$ or a $Y$ chromosome to the offspring. If the father contributes a $Y$ chromosome,the offspring is male. The $X$ chromosome in a male $(XY)$ is always inherited from the mother,as the father contributes the $Y$ chromosome to determine the male sex.

$A$ man receives his $X$ chromosome from

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