Do you believe that there is evidence for the "twisted drug abuse gene" (the genetic explanation), or that learning (environmental processes) have the primary influence on drug abuse? After you respon

Do you believe that there is evidence for the "twisted drug abuse gene" (the genetic explanation), or that learning (environmental processes) have the primary influence on drug abuse? After you respond, please comment on at least one other student’s posting.  This is the old "genetics versus learning" or "nature versus nurture" debate.