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Principles of Inheritance and Variation question

2004 · Q61
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Principles of Inheritance and Variation question

2004 · Q61

NEETBiologyPrinciples of Inheritance and VariationMCQ+4 / −1
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. A
    1/16
  2. B
    1/32
  3. C
    1/8
  4. D
    1/4
View written solutionFree

Correct answer: C

The male human is heterozygous for autosomal gene A and B and also hemizygous for haemophilic gene h, then his genotype will be AaBbXhY because haemophilia is a sex linked trait that is present on X-chromosome. So, the total number of gametes will be abXh, abY, ABXh, ABY, AbXh, AbY, aBXh, aBY. So the proportion of abXh sperm will be 1/8.

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