What percentages can be expected in the offspring of cross between a female carrier for color blindness and a male with normal color vision?
A. 75% normal males, 25% carrier females.
B. 50% colorblind males, 50% colorblind females.
C. 25% normal male, 25% colorblind males, 25% normal females, 25% carrier females.
D. 25% normal males, 25% colorblind males, 25% carrier females, 25% colorblind females.
A female carrier has one normal X chromosome and one defective X chromosome with respect to color blindness and a normal male has a normal X and a Y chromosome. A Punnett square reveals that 1 is the only choice.