Assume that a particular person is addicted to drugs. What other person is most likely to be addicted to drugs also? This other person will be one, who is a(n)
A) identical twin and who lives in an environment at risk for drug use.
B) identical twin and who lives in an environment safe from drug use.
C) cousin and who lives in an environment at risk for drug use.
D) cousin and who lives in an environment safe from drug use.

Question

Quizplus · Accepted Answer

Identical twins have a higher likelihood of sharing genetic factors that contribute to addiction. If they are raised in an environment at risk for drug use, they may both become addicted. If the other person is not an identical twin, the genetic similarity is not as high and therefore the risk of addiction is lower. If the other person is an identical twin but lives in an environment safe from drug use, the risk is also lower because environmental factors play a role as well.

Assume That a Particular Person Is Addicted to Drugs