In simpler times, genes encoded proteins, and the actions or absence of those proteins caused the trait or disease. But today, investigations from outside genetics – reported in psychology and politics journals, for example – are assigning genetic explanations to everything from liberalism to feelings about the death penalty to whether the sound of someone chewing is annoying.
Strange things can happen when non-geneticists publish genetics papers. So I thought I’d mention a few intriguing reports and propose a behavior to investigate: nose-picking. (more…)