A human male is heterozygous for autosomal ge | vedclass

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Question

(A) The genotype of the human male is $AaBbX^{h}Y$.
Since the genes are on different chromosomes (autosomal and sex-linked),they assort independently

Vedclass · Accepted Answer

$12.5$

Vedclass · Answer

(A) The genotype of the human male is $AaBbX^{h}Y$.
Since the genes are on different chromosomes (autosomal and sex-linked),they assort independently.
The possible gametes are formed by the combination of alleles: $(A, a) 	imes (B, b) 	imes (X^{h}, Y)$.
This results in $2 	imes 2 	imes 2 = 8$ types of gametes: $ABX^{h}, ABY, aBX^{h}, aBY, AbX^{h}, AbY, abX^{h}, abY$.
Among these $8$ types,the genotype '$abh$' corresponds to the gamete $abX^{h}$.
Therefore,the probability of producing a sperm with the '$abh$' genotype is $1/8$,which is $12.5 \%$.

$A$ human male is heterozygous for autosomal genes '$A$' and '$B$'. He is also hemizygous for the haemophilic gene '$h$'. What percentage of sperms will carry the '$abh$' genotype (in $\%$) (in $\%$)?

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