MCQ
In human, tongue rolling is a dominant trait $(R)$, those with the recessive condition cannot roll their tongues. Mohan can roll his tongue, but his mother could not. He is married to Surekha, who cannot roll her tongue. What is the probability that their first born child will not be able to roll his tongue?
- A$0 \%$
- B$30 \%$
- C$100 \%$
- ✓$50 \%$
