Which of the following most directly demonstrates that genetics play an important role in obesity?
A)Scientists have determined that most of the time, a single gene appears to determine obesity.
B)Identical twins raised apart are about as similar in body mass as identical twins raised together.
C)Technological advances have decreased the need for daily physical activity.
D)Obesity rates in the United States and Canada have increased rapidly in the past few years.

Question

Quizplus · Accepted Answer

Identical twins, who share the same genetic makeup, having similar body mass regardless of their environment (raised apart or together) directly demonstrates the influence of genetics on obesity. This is because it suggests that their body mass is influenced more by their genetics than their environment.

Which of the Following Most Directly Demonstrates That Genetics Play