Which of the Following Statements Is True About the Role

Multiple Choice

Which of the following statements is true about the role of heredity in physical growth?

A) When diet and health are adequate, heredity has little effect on height and rate of growth.
B) Even if negative environmental influences are not severe, children show little catch-up growth once conditions improve.
C) Twin studies reveal that genetic makeup has little effect on body weight.
D) Genes influence growth by controlling the body's production of and sensitivity to hormones.