Question:medium
A family has a history of colour blindness. During a genetic testing, it was found that the mother is a carrier of colour blindness (X^C X) and the father has normal vision (XY). What is the probability of their sons being colour blind?
A family has a history of colour blindness. During a genetic testing, it was found that the mother is a carrier of colour blindness (X^C X) and the father has normal vision (XY). What is the probability of their sons being colour blind?
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Remember, since colour blindness is a recessive sex-linked trait, a son can only inherit it if he receives the X^C chromosome from his mother and the Y chromosome from his father.
Updated On: Mar 15, 2026
- 25%
- 50%
- 75%
- 0%
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The Correct Option is B
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