Biology miscellaneousHard
Question
If a colour-blind man marries a woman who is homozygous for normal colour vision, the probability of their son being colour-blind is
Options
A.
0
B.
0.5
C.
0.75
D.
1
Solution
Colourblindness is X-linked recessive disease and shows criss-cross inheritance.
100% - carrier daughters (Phenotypically normal)
100% - Normal son
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