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03/28/2008: "Twin studies suggest genes have significant impact on our opinions"

He is anxious to avoid the charge that he and his colleagues support the notion that genes exclusively pre-determine our views. "We still say that at least half of our political beliefs are still influenced by our environment."

Nonetheless, the researchers are working toward a hypothesis that how we react in certain social situations, or for example whether we have a more or less tolerant attitude towards "outsider" groups (such as immigrants) may have an underlying genetic cause.

[ Our genes both influence and set limitations on our behavior, while environment acts as a catalyst ]

http://news.bbc.co.uk/1/hi/magazine/7315656.stm