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Is it just a coincidence that father son duo Bobby Bonds and Barry Bonds have both made it in baseball history for their all-star power and speed? Or that Francis Coppola and daughter Sofia both rose to fame as award-winning film directors?
The genetic influence to alcoholism has been studied since the 1970s, when twin studies first revealed this link. In April of this year, a team led by Susan Bergeson at the University of Texas at Austin found 20 gene candidates that could influence excessive drinking. Four genes have been shown, by multiple research groups, to contribute to risk of alcoholism. According to Henry Kranzler “This is a rapidly developing field, such that I would anticipate that up to another 10 such genes will be identified with the findings replicated independently, in the next decade.”
"For more than a century scientists have been studying the role of genes in influencing behaviors. The most common method to studying this fact is: twin studies. With the advent of molecular genetics, and then in 2000 the mapping of the human genome, scientists have been able to peer into something intangible blueprint within every cell of the human body." (www.livescience.com)