Answer to Question #189304 in Genetics for Jon jay Mendoza

Question

4. Colorblindness is an X-linked trait caused by a recessive allele. A carrier female marries a normal male. (Punnett Square: 4 points)

a. How many of the male offspring can be expected to be color-blind? (1 point)

b. How many of the male offspring can be expected to have normal vision? (1 point)

c. How many of the female offspring can be expected to be carriers? (1 point)

d. How many of the female offspring can be expected to be normal? (1 point)

Answer 1

a) 0.5 of the sons can be expected to be Colourblind.

b) 0.5 of the sons can be expected to have normal vision.

c) 0 can be expected to be Colourblind.

d) All of the daughters.