12.10 a color-blind man marries a woman nf normal vision. they have sons and daugh- ters, all of normal vision and all of whom marry persons of normal vision. w

12.10 A color-blind of normal vision. They have sons and daugh- ters, all of normal vision and all of whom marry persons of normal vision. Where among the grandchildren may color blind- ness be expected to appear? If there are cousin marriages among these grandchildren, where among their offspring may color blind- ness be expected to appear? (All persons of normal vision mentioned are homozygous.