A male human is heterozygous for autosomal genes A and B

A male human is heterozygous for autosomal genes A and B and is also hemizygous for hemophilic gene h. What proportion of his sperms will be abh?

Chance of getting a =	1
	2

Chance of getting b =	1
	2

Chance of getting b =	1
	2

Chance of getting sperms with abh =	1	×	1	×	1	=		1
	2		2		2			8