When either a mother's or father's version of a gene is expressed, but not both, we refer to the gene as

a. imprinted

As a result of homeostasis, a person who is tired will

a. fight to stay awake. b. do something to distract herself. c. start to become a bit moody. d. talk a lot about sleep. e. try to find a place to fall asleep.

A college student with a "D-" average tells her parents that school is going well and

refuses to admit to herself that she might fail. Her defense mechanism is ______. a. denial c. sublimation b. repression d. reaction formation