Some people can roll their tongues into tubes and some can't.If a child inherits a rolling allele from one parent and a nonrolling allele from the other,she will be able to roll her tongue.The tongue-rolling allele must therefore be
A) recessive.
B) dominant.
C) polygenetic.
D) adaptive.

Question

Quizplus · Accepted Answer

If a child inherits one rolling allele, they will be able to roll their tongue, indicating that the rolling allele is dominant.

Some People Can Roll Their Tongues into Tubes and Some