If you can curl your tongue, which of the following is true about your parent(s)?
A) At least one of your parents also has this trait.
B) Both of your parents also have this trait.
C) Both of your parents carry the recessive trait for tongue curling.
D) There is no way to determine anything about your parents based on this information.

Question

Quizplus · Accepted Answer

The ability to curl one's tongue is a dominant trait, meaning that if you can curl your tongue, at least one of your parents must also have this trait. However, it is possible for only one parent to have it and pass it on to you. There is not enough information to determine whether both parents have the trait or whether they carry the recessive trait.

If You Can Curl Your Tongue, Which of the Following