Which statement about genetic factors in obesity is true?
A)The genetic contribution to obesity is about 75%.
B)The weight of an adopted child is more similar to the weights of the adoptive parents.
C)Researchers have identified a single gene responsible for obesity.
D)Genetic factors influence where on the body extra weight is addeD.

Question

Quizplus · Accepted Answer

Genetic factors have been shown to influence where on the body excess weight is added. For example, some people have a genetic predisposition to store fat around their midsection, while others may store more in their hips and thighs. However, the genetic contribution to obesity is complex and involves multiple genes rather than a single gene. Studies of adoptive families and twins have shown that genetics play a role in obesity, but lifestyle factors such as diet and physical activity also play a significant role. The weight of an adopted child is more similar to the weight of their biological parents, rather than their adoptive parents, providing evidence for the role of genetics in weight status. However, this does not mean that genetics is solely responsible for obesity, as environmental factors also play a role. Estimates of the genetic contribution to obesity vary, but it is generally agreed that genetics account for about 40-70% of the risk of developing obesity.

Which Statement About Genetic Factors in Obesity Is True