Question

If a colour blind female marries a man whose mother was also colour blind, what are the chances for her Progeny having colour blindness?

• A. 0.25
• B. 0.5
• C. 0.75
• D. 1

Hint:

Colour blindness is a sex-linked recessive disorder. Understanding inheritance patterns can clarify similar genetic problems.

Answer 1

The Correct Option is D

If both the parents are carriers or affected by colour blindness, the progeny will inherit the defective X chromosomes, resulting in 100% of the progeny being colour blind.