Is political ideology derived from a person's social environment or is it a result of genetic predisposition? It's an interaction of both, according to a recent study on our political leanings that boosts both sides of the nature versus nurture debate.
Scientists at the University of California San Diego and Harvard University determined that people who carry a variant of the DRD4 gene are more likely to be liberals as adults, depending on the number of friendships they had during high school. They published their study in a recent issue of The Journal of Politics.
The 7R variant of DRD4, a dopamine receptor gene, had previously been associated with novelty seeking. The researchers theorized novelty seeking would be related to openness, a psychological trait that has been associated with political liberalism.
However, social environment was critical. The more friends gene carriers have in high school, the more likely they are to be liberals as adults. The authors write, "Ten friends can move a person with two copies of 7R allele almost halfway from being a conservative to moderate or from being moderate to liberal."I wonder if Obamacare will cover gene therapy.