Question

Marriage between colour blind man and normal woman shall result in

• A. Colour blind female progeny
• B. Colour blind male progeny
• C. Normal vision female progeny
• D. Normal vision male and female progeny

Answer 1

The correct option is A Colour blind female progeny

Color blindness is X-linked recessive disorder. In this person is unable to distinguish between red and green color. The X-linked recessive disorder is most often found in males compare to female because expresses the conditions under a homozygous state. In males X${}^C$y is normal and X${}^c$Y is affected. But in females X${}^c$X${}^c$ are affected, X${}^C$X${}^c$ are normal but the carrier and homozygous state individuals X${}^C$X${}^C$ are affected.

So, the correct answer is 'Colour blind female progeny'.