Suppose "A" is a dominant gene for the ability to taste phenylthiocarbamide and "a" is a recessive gene for the inability to taste it. Which couples could possibly have both a child who tastes it and a child who does not?

Beginning in 2002, the Centers for Disease Control and Prevention added which group of people to participate in their survey about attitudes toward sex, cohabitation, marriage, divorce, and parenting?

a. College students b. Women over 50 c. Men d. Asian Americans

"What has been learned can be unlearned" is a central assumption of

a. insight therapy. b. group therapy. c. behavior therapy. d. biomedical therapy.