Having an identical rather than fraternal twin with alcohol use disorder puts one at an increased risk for alcohol problems.This indicates that alcohol use disorder
A) has a psychedelic effect.
B) is socially influenced.
C) is genetically influenced.
D) is synaptically transmitted.

Question

Quizplus · Accepted Answer

The fact that having an identical twin with alcohol use disorder increases one's risk for alcohol problems suggests that genes play a significant role in the development of alcohol use disorder.

Having an Identical Rather Than Fraternal Twin with Alcohol Use