If a colour-blind man marries a women who is homozygous for normal colour vision, the probability of their son being colour-blind is
0.75
1
0
0.5
A
0.75
B
1
C
0.5
D
0
Open in App
Solution
Verified by Toppr
Colour-blind man (XcY) and normal woman (XX) can not have a colour-blind son as it is an X-linked recessive trait and is inherited by criss-cross inheritance. To have a colour-blind son, the mother should be a carrier (XcX) or affected (XcXc) so as to pass the affected X chromosome to son.
Therefore, the correct answer is option C.
Was this answer helpful?
1
Similar Questions
Q1
If a colour-blind man marries a women who is homozygous for normal colour vision, the probability of their son being colour-blind is
View Solution
Q2
If a colour blond man marries a woman who is homozygous for normal colour vision, the probability of their son being colour blind is
View Solution
Q3
A colour blind man marries a women with normal sight who has no history of colour blindness in her family .What is the probability of their grandson being colour blind?
View Solution
Q4
If a man who is colour blind marries a woman who is pure normal for colour vision, what are the chances of their sons having colour blindness?
View Solution
Q5
If a colourblind man marries a woman who is homozygous for normal colour vision, the probability of their son being colourblind is