Answer to Question #200212 in Genetics for rojina farnaghi

Question

Colour vision deficiency is an x-linked recessive disorder. A female whose father has colour vision deficiency has normal vision. What is her genotype?

Answer 1

Color vision deficiency results because of a recessive X-linked trait. More males are affected than females by this condition when both parents carry the color-deficient gene. 

 

The genotype of the father having colors vision deficiency would be XCY

The mother would likely be having normal vision. The genotype would be XX

The color-deficient father would have a carrier daughter with normal vision. 

The genotype of the daughter would be XX^C.