The finding that people with one type of serotonin transporter ...

[gonzo233]

The finding that people with one type of serotonin transporter gene and childhood maltreatment had higher
  rates of depression than either those without the gene or those with the gene without the maltreatment
  suggests that
 
  A) only one type of gene causes depression.
  B) both a gene and certain environmental factors need to be present to cause depression.
  C) childhood maltreatment causes depression.
  D) either a gene or certain environmental factors need to be present to cause depression.

Question 2

Adam and Beth are both being treated for alcohol dependence by being given medications. Adam's
  medication makes him vomit if he drinks after taking it. Beth's medication reduces her craving for alcohol.
 
  Most likely Adam is taking ________; Beth is taking ________.
 
  A) methadone; Naltrexone B) methadone; Antabuse
  C) Antabuse; Naltrexone D) Naltrexone; methadone

[epscape]

Answer to Question 1

B

Answer to Question 2

C