- Is your personality more like one of your parents than the other? If you have a sibling, is his or her personality like yours? In your family, how did these similarities and differences develop? What do you think caused them?
- Can you think of a human characteristic for which genetic differences would play almost no role? Defend your choice.
- Do you think the time will come when we will be able to predict almost everything about someone by examining their DNA on the day they are born?
- Identical twins are more similar than fraternal twins for the trait of aggressiveness, as well as for criminal behavior. Do these facts have implications for the courtroom? If it can be shown that a violent criminal had violent parents, should it make a difference in culpability or sentencing?