Claude Bouchard conducted research on the effects of overfeeding on weight gain and found that identical twins were similar in the amount of weight they gained. This study provides evidence for which of the following?

Question

Quizplus · Accepted Answer

Claude Bouchard's study on identical twins provides evidence that weight gain is largely influenced by genetics. If environment played a significant role in weight gain, we would expect to see more variability between the weight gain of identical twins. However, since identical twins have nearly identical genetic makeup, their similar weights after overfeeding suggests that genes play a dominant role in weight gain.

Claude Bouchard Conducted Research on the Effects of Overfeeding on Weight