A human male is heterozygous for autosomal ge | vedclass

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Question

(C) The genotype of the human male is $AaBbGgX^hY$. Since the genes $A, B$, and $G$ are autosomal and heterozygous, the probability of inheriting the

Vedclass · Accepted Answer

$1/16$

Vedclass · Answer

(C) The genotype of the human male is $AaBbGgX^hY$. Since the genes $A, B$, and $G$ are autosomal and heterozygous, the probability of inheriting the recessive allele for each is $1/2$. For the hemophilic gene $h$, the male is $X^hY$. The probability of the sperm carrying the $X^h$ chromosome is $1/2$, and the probability of it carrying the $Y$ chromosome is $1/2$. However, the genotype $abgh$ implies the presence of the recessive allele $h$ on an $X$ chromosome. Probability of $a = 1/2$. Probability of $b = 1/2$. Probability of $g = 1/2$. Probability of $h$ (on $X$ chromosome) = $1/2$. Total probability = $(1/2) 	imes (1/2) 	imes (1/2) 	imes (1/2) = 1/16$.

$A$ human male is heterozygous for autosomal genes $A, B$, and $G$, and also for the hemophilic gene $h$. What is the probability of his sperm being $abgh$?

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