Of the roughly 126 million receptor cells within each eye, about 120 million are cones and 6 million are rods

Epidemiological evidence suggests that which of the following factors is an important ingredient in establishing risk for developing an eating disorder?

a. comorbidity b. genetics c. holding particular sets of values related to women's appearance d. early family relations

For a simple trait with one dominant and one recessive gene, a person will display the recessive trait

A) if they are heterozygous or homozygous for the recessive trait. B) only if they are homozygous for the recessive trait. C) only if they are heterozygous. D) as long as they inherit one copy of the recessive trait.