Question

Please Help Me!!!

The gene for tongue rolling is rare.The mother’s genotype is TT, and the father’s is TT. What are the chances that the child will be able to his roll tongue?

25% chance
50% chance
75% chance
100% chance

Answer 1

100 percent, because if "T" is the dominant gene and both the father and the mother have it, then all of their kids will most likely have that trait as well. Hope this helped!