A Korean American and a European American are in a bar and each has the same kind of beer. The Korean American turns red and has a headache, but the European American experiences neither symptom. The Korean American's reaction is likely to be a result of:
A) alcohol dependence
B) the MAO gene
C) the ALDH2 gene
D) the DRD2 gene

Question

Quizplus · Accepted Answer

The ALDH2 gene is responsible for encoding an enzyme that helps break down alcohol in the body. A variant of this gene, common in people of East Asian descent, can lead to an accumulation of acetaldehyde, causing symptoms like flushing and headaches after drinking alcohol.

A Korean American and a European American Are in a Bar