A) All colourblind
B) 50% colourblind
C) All normal
D) 25% colourblind
Correct Answer: B
Solution :
Infact the girl with normal vision is carrier because her father is colourblind (daughter of colourblind father are either colourblind or carrier) and when she marries a normal man the possibility of their sons being colourblind is 50% because the genotype of parents is X?X and XY, so only half of the possible combinations of XY have the X-linked recessive genes which exhibit the disease.You need to login to perform this action.
You will be redirected in
3 sec