Research on the genetic and environmental influences on body weight has revealed that

Question

Quizplus · Accepted Answer

Research has consistently shown that adopted children's weight is more strongly correlated with their biological parents' weight than their adoptive parents' weight, indicating a genetic influence on body weight.

Answer: B
 Studies on twins have found that identical twins' body weight is more highly correlated than fraternal twins, suggesting a genetic influence. However, the fact that identical twins reared apart have lower correlations than those reared together suggests an environmental influence.

Answer: C
 Research has shown that the prevalence of obesity has been increasing in the United States and worldwide, contradicting statement C.

Answer: D
 There is no evidence to support this statement. Identical twin men and women are similarly influenced by genetic and environmental factors when it comes to body weight.

Research on the Genetic and Environmental Influences on Body Weight