Claude Bouchard found that identical twins have similar weights regardless of whether they are raised together or apart.This study provides evidence for the idea that
A) environment plays an important role in weight gain.
B) being an identical twin is stressful and therefore likely to cause weight gain.
C) weight gain is inevitable for most people if they overeat.
D) genes play an important role in weight gain.

Question

Quizplus · Accepted Answer

The study by Claude Bouchard on identical twins, who share the same genes, showing similar weights regardless of their environment, supports the conclusion that genes have a significant impact on weight gain. This is because the only constant between the twins raised apart is their genetic makeup.

Claude Bouchard Found That Identical Twins Have Similar Weights Regardless