How do you do a dihybrid cross with an autosomal and sex linked trait?

1 answer:

8 0

Genotype of woman: Bb X^C X^c
Genotype of man: bb X^C Y 

Probability of brown eyes = 1/2 
Probability of colorblind male = 1/4 
Probability of brown-eyed colorblind male = 1/2 X 1/4 = 1/8 

2. Genotypes are the same as before. You know the fetus is a boy. So, he has a 50% chance of being colorblind.

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