Question

A colour blind daughter may be born if the

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

Answer 1

Answer: (D)

Father is colour blind and mother is a carrier

Colour blindness is inherited from mutations on the X chromosome.

According to Mendelian genetics, if father is colour blind and mother is a carrier, then their daughter (XX- One X from father and another one from mother) will be born as a colour blind.

So, the correct answer is 'Father is colour blind and mother is a carrier'.