Question

In a cross between a white-eyed female minimonkey and red-eyed male, what percent of the female offspring will have white eyes? (White eyes are X-linked, recessive)

a 0%
b 50%
c 100%
d impossible to determine from data

Answer 1

b 50%

Explanation: A cross between a sex linked white eye female monkey and Red eye mini monkey will give 2 white eye female and 2 Red eye male in ratio 2:2 because the white eyes is linked with the female gene hence its inherited.

i.e 50% of female with white eye and 50% male with white eye