Which statement supports the notion that heredity contributes to differences in body weight?
A. Pima Indians in the United States and Mexico share the same genes, but only those persons who live in a particular environment develop obesity.
B. Several forms of human obesity involve a deficit in ghrelin production, which can be treated by ghrelin injection.
C. Twin studies indicate that genes account for 25 percent of the variability in body fat accumulated when people are fed a high-fat diet.
D. Twin studies indicate that genes account for little of the variability in body fat accumulated when people are fed a high-fat diet.
Answer: A
You might also like to view...
The most advanced level of thinking in Piaget's theory is called:
a. sensorimotor. c. preoperational. b. concrete operations. d. formal operations.
Nerve hearing impairment due to problems in the auditory cortex of the brain has been easily corrected with hearing aids
Indicate whether this statement is true or false.
A phenotype is illustrated by which of the following?
a) Lisa's level of anxiety. b) Lisa's chromosomes. c) The genes that code for Lisa's eye color. d) Lisa's DNA structure.
Unfortunately, the rhinoceros population in Africa has dwindled to the point of near extinction, largely as a result of the erroneous belief that rhinoceros horn is a(n):
A) estrogen replacement. B) effective aphrodisiac. C) androgen-blocking drug. D) cure for hypogonadism.