Which of the following statements about genetic factors in obesity is TRUE?
A) Genetic factors influence body fat distribution.
B) The weight of an adopted child is more closely related to the weights of the adoptive parents than to the weights of the biological parents.
C) Researchers have identified a single gene responsible for obesity.
D) The genetic contribution to obesity is about 75%.

Question

Quizplus · Accepted Answer

Genetic factors do play a role in determining body fat distribution, with certain genes influencing whether fat is stored in the abdomen or in other areas of the body. However, the other options are not accurate. Option B is false - studies have consistently found that adoptive children's weights are more closely related to those of their biological parents than to their adoptive parents. Option C is also false - obesity is a complex trait that results from the interplay of multiple genes, each with a small effect. No single "obesity gene" has been identified. Option D is an overestimate - most estimates of the genetic contribution to obesity range from 40-70%.

Which of the Following Statements About Genetic Factors in Obesity