Colorblindness is a sex linked recessive trait on the X chro…

Colorblindness is a sex linked recessive trait on the X chromosome. Jack is colorblind but Sandra is not and there is no history of anyone being colorblind in her family. After taking biology 111 Leah told her dad that her sons would have a 50% of being colorblind since he gave her the defective X. What would Leah’s genotype be?