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 only account for 5-10 % of the variation in body weight.
D) Body weight is not influenced by genes.

Question

Quizplus · Accepted Answer

Twin and adoption studies have shown that genetics play a significant role in determining body weight, with estimates suggesting that genes account for between 50% and 90% of the variation in body weight among individuals. This high percentage indicates a strong genetic influence on body weight.

What Do Twin and Adoption Studies Indicate About the Role