18009. HEREDITY & ADDICTION. Although environmental factors also play a role in the development of addiction, this paper focuses on the role of genetic factors in causing various kinds of addiction. The research paper looks at the evidence from studies using animal and human subjects. In addition, the essay discusses the implications for treatment and prevention (such as the use of anti-craving medications and matching individual patients to the best possible treatment options). KEYWORDS: genetics heredity drug alcohol addiction. Written 2006. APA Style. 11 pages, 25 footnotes, 10 bibliographic sources. 2,619 words.