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) $25 %$

(c) $50 %$

(b) $0 %$

(d) $75 %$

Show Answer

Answer : c

Hints & Solution

(c) Colour blindness is a X-chromosome linked character. $\therefore \quad$ Colourblind male $=50 %$