Question

If a girl is colour blind, what is the possibility that her father is also colour blind?

Answer 1

The possibility that her father is color blind is 50%.

1. When the girl is color-blind if she gets a defective X chromosome from the color-blind father and a defective X chromosome from a carrier mother.
2. Colour blindness is a sex-linked recessive disorder that occurred due to a mutation on the X chromosome.