Streetcar Carries Evolution Modelers Around Roadblocks

摘要

When Charles Darwin put forward his theory of evolution, he had no idea that an organism's physical attributes, and some of its behavior, are encoded by chemical entities called genes. Nowadays, the genetic view of biology is pervasive, defining everything from eye color through inherited diseases to, more controversially, certain types of human behavior, such as aggression, depression, and schizophrenia. But one thing geneticists have not fully come to grips with so far is how to model evolution its