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  4. Taylor is heterozygous for two autosomal gene pair (CcDd). He is also colour-blind. What is the probability of gametes having c, d and colour-blind genes?

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Q. Taylor is heterozygous for two autosomal gene pair (CcDd). He is also colour-blind. What is the probability of gametes having c, d and colour-blind genes?

NTA AbhyasNTA Abhyas 2020Principles of Inheritance and Variation

Solution:

The genotype of Taylor would be:
CcDdXcy - Taylor
$Gametes=cdX^{c}=\frac{1}{2}\times \frac{1}{2}\times \frac{1}{2} \, $
$=\frac{1}{8}$