What do twin and adoption studies indicate about the role of genes in body weight?
A)Genes account for between 50% and 90% of the variation in body weight.
B)Genes account for a moderate 15-20% of the variation in body weight.
C)Genes account for only 5-10% of the variation in body weight.
D)Body weight is not influenced by genes.

Question

Quizplus · Accepted Answer

Twin and adoption studies suggest that genes account for between 50% and 90% of the variation in body weight among individuals. This means that while environmental factors, such as diet and exercise, also play a role in determining body weight, genetics are a significant factor in determining an individual's weight.

What Do Twin and Adoption Studies Indicate About the Role