If a colour-blind man marries a woman who
is homozygous for normal colour vision, the
probability of their son being colour-blind is
(a) 0 (b) 0.5
(c) 0.75 (d) 1.
is homozygous for normal colour vision, the
probability of their son being colour-blind is
(a) 0 (b) 0.5
(c) 0.75 (d) 1.