A female whose father was colourblind marries a normai male whose father was also colourblind. What is the probability that their son will be colour blind?

A female whose father was colourblind marries a normai male whose father was also colourblind. What is the probability that their son will be colour blind?

Q. A female whose father was colourblind marries a normai male whose father was also colourblind. What is the probability that their son will be colour blind?

A.            0%

B.            25%

C.            50%

D.            75%

Answer: 50%

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