Question

Father of a child is colourblind and mother is the carrier for colourblindness, the probability of the child being colour blind is ___________.

• A. 25%
• B. 50%
• C. 100%
• D. 75%

Answer 1

The correct option is B 50%

If the father of a child is colourblind $\left(X^{c}y\right)$ and mother is carrier of colourblindness $\left(X{X}^C\right)$, then probability of the child being colourblind is 50%.

So, the correct answer is '50%'