Question

2. When can a female be colour blind?

• A. Father has normal vision and the mother is a carrier
• B. Father has normal vision and mother is colour blind
• C. Father is colour blind and the mother has a normal vision
• D. Father is colour blind and mother is a carrier

Answer 1

Answer:

D. Father is colour blind and mother is a carrier

A female can be a colour blind only in two conditions: i. When her father is colour blind and her mother is the carrier of this disease ii. When both her father and her mother are colour blind Therefore, for a female to be colour blind, her father must also have colour blindness.