Cultural developments modify human genome

While reading Self Comes to Mind he referenced the following research that makes such a claim. It's interesting that conscious deliberation and decision, which created culture, can actually re-program what reductionists claim is destiny, our genetic heritage.

1. W. H. Durham, Co-evolution: Genes, Culture and Human Diversity (Palo Alto, Calif: Stanford University Press, 1991).

2. C. Holden and R. Mace, "Phylogenetic Analysis of the Evolution of Lactose Digestion in Adults," Human Biology 69 (1997),605-28.

3. Kevin N. Laland, John Odling-Smee, and Sean Myles, "How culture shaped the human genome: Bringing  genetics and the human sciences together." Nature Reviews Genetics II (2010), 137-48.