In Mr. Kapoor,there is a pair of autosomal ge | vedclass

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(C) Mr. Kapoor is a male,so his genotype for the sex chromosomes is $XY$. The sex-linked factor $d$ is located on the $X$ chromosome. Thus,his genotyp

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$1/4$

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(C) Mr. Kapoor is a male,so his genotype for the sex chromosomes is $XY$. The sex-linked factor $d$ is located on the $X$ chromosome. Thus,his genotype is $BbXdY$. During meiosis,the autosomal genes $B$ and $b$ segregate independently. The possible combinations of autosomal genes and sex chromosomes in the sperm are: $1$. $B$ with $X^d$ $2$. $B$ with $Y$ $3$. $b$ with $X^d$ $4$. $b$ with $Y$ Each of these four combinations has an equal probability of $1/4$. Therefore,the proportion of sperm carrying $Bd$ (where $d$ is the sex-linked factor) is $1/4$.

List-$I$	List-$II$
$A$. $\text{ABO}$ blood group	$i$. Same phenotypic and genotypic ratio
$B$. Human skin colour	$ii$. Pleiotropy
$C$. Phenylketonuria	$iii$. Multiple allele
$D$. Incomplete dominance	$iv$. Polygenic inheritance

In Mr. Kapoor,there is a pair of autosomal genes $Bb$ and a sex-linked factor $d$. What will be the proportion of $Bd$ in his sperm?

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