via unknowncountry by astrieber on 9/19/12
It's actually the opposite: A new study demonstrates that our genes are controlled by our culture and environment. Here's an example: In the Wall Street Journal, Matt Ridley writes: "All mammals can digest lactose sugars in milk as babies, but the lactase gene switches off at weaning when no longer needed. In much of Europe and parts of Africa, by contrast, most people can digest lactose even as adults, because the lactase gene remains switched on. (About 90% of East Asians and 70% of South Indians are lactose-intolerant to some degree.)
No comments:
Post a Comment