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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 1/32 1/16 ¼ 1/8

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
  1. 1/32
  2. 1/16
  3. ¼
  4. 1/8

Grade:12th pass

1 Answers

Beenu Mathew
533 Points
7 years ago
HI,
 
brilliant question
now see
heterozygous for A AND B AND hemizygous for h
therefore is genotype would be …??? common you know it
AaBbXh Y
(hemizygous for h as in for human males can only fall on X...
hemizygous for female would be Xh X...got it?)
ok...
now form all the kinds of gametes you can get with this,,,
abXh
ABXh
abY
AbY
aBX
aBY
ABY
AbXh
but they are asking for portion of abXh..
therfore ans is 1/8
 

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