Question:
What percentage of children are colour blind if their father is colour blind and the mother is a carrier for Colour blindness?
What percentage of children are colour blind if their father is colour blind and the mother is a carrier for Colour blindness?
Updated On: Aug 11, 2023
- (A) 25%
- (B) 50%
- (C) 75%
- (D) 100%
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The Correct Option is B
Solution and Explanation
Explanation:
The percentage of children who are colour blind if their father is colour blind and the mother is a carrier for colour blindness is 50% because the father will produce Xc and Y chromosomes and the mother will produce Xc and X chromosomes. Their children will have the genotypes- XcY, XY, XcXc and XXc. Therefore, 50% of children are colour blind, 25% have normal vision and 25% are the carriers of the disease.
The percentage of children who are colour blind if their father is colour blind and the mother is a carrier for colour blindness is 50% because the father will produce Xc and Y chromosomes and the mother will produce Xc and X chromosomes. Their children will have the genotypes- XcY, XY, XcXc and XXc. Therefore, 50% of children are colour blind, 25% have normal vision and 25% are the carriers of the disease.
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