Answer to Question 1
ANS: A
FEEDBACK: Much research indicates that genetic effects are most important in infancy and the very early years, whereas environmental effects on personality become increasingly important as we advance from childhood to adulthood. Environmental influences continue to affect our behavior and personality throughout our life.
Answer to Question 2
ANS: C
FEEDBACK: In addition to finding genetic components in major dimensions of personality, researchers have also noted some common, everyday behaviors that are influenced by genetics. Studies in the United States, Finland, the French-speaking portion of Canada, and Sweden have found evidence of genetic influences on sexual attitudes, on eating behaviors in 2-year-olds, on depression in children who are victims of bullying, and on attitudes toward practicing playing a musical instrument.