Principles of Inheritance and Variation Question 147
147. A man whose father was colour blind marries a woman who had a colour blind mother and normal father. What percentage of male children of this couple will be colour blind?
(a) $25 \%$
(b) $0 \%$
(c) $50 \%$
(d) $75 \%$
Show Answer
Answer : c
Hints & Solution
(c) Colour blindness is a X-chromosome linked character.
$\therefore \quad$ Colourblind male $=50 \%$
