Question

Tongue rolling is a dominant trait. Explain why it is possible for both parents being able to roll their tongue but their biological child is not able to do so.

Answer 1

The answer is 0 ( AKA A )

Step-by-step explanation:

Parents form the same type of gene, which is Rr. Since all the genes are the same, there can not be a chance that the offspring can not roll the tongue. Next time focus on your work!! :3

Answer 2

The parents are heterozygous so when they have a kid they got the ressesive trait so they can’t roll there tongue