.A normal-visioned man whose father was colour-
blind, marries a woman whose father was also
colour-blind. They have their first child as a
daughter. What are the chances that this child would
be colour-blind?
(a) 100% (b) Zero percent
(c) 25% (d) 50%
blind, marries a woman whose father was also
colour-blind. They have their first child as a
daughter. What are the chances that this child would
be colour-blind?
(a) 100% (b) Zero percent
(c) 25% (d) 50%