Question

In guinea pigs, black coat color is a dominant trait and white is a recessive trait. When heterozygous black pigs are intercrossed the chance of the first two offspring being black is:

• A. 75%
• B. 56%
• C. 44%
• D. 6%

Answer 1

The correct option is B 56%

On solving the Punnett square of the heterozygous parents, it is evident that the chance of the first two offspring being black will be (3/4)*(3/4). This calculation is possible because the events are independent of each other.

So the correct option would be '56%'.