Question

What would be the probability of a child to be a girl with blood group A whose father is with blood group AB and mother is with blood group O?
[0.7 mark]

• A. $\frac{1}{8}$
• B. $\frac{1}{2}$
• C. $\frac{3}{4}$
• D. $\frac{1}{4}$

Answer 1

The correct option is D $\frac{1}{4}$

The cross can be represented as follows:


As shown in the above cross, out of four children, girl with blood group A is one. Therefore, the probability would be $\frac{1}{4}$.