This methodological seminar is about the relationship between social sciences and genetics, and beyond about nature and culture, genes and the environment, an old debate. For years, social sciences were extremely reluctant towards genetics, especially at the time when there was the so-called “gene of participation” or “gene of Democrat and Republican support” in the US, but in the last years, there has been fantastic progress in genomics, in the sequencing of the genome, and more and more people are using it, even on the side of sociologists. So to look into closer, look into the relationship between social sciences and genetics, we have today two specialists.