Lactose Tolerance: a Recent Adaptive Selection at Work
Words: 2075 Pages: 7 3026According to prevailing but unsubstantiated sociobiological theory, humans have remained essentially the same since the emergence of modern man around 100,000 years ago. Most of the changes that have occurred since this time have been attributed to cultural evolution. Recent progress in molecular genetics when applied to populations is beginning to convey a different story, however. The gene for the persistence of lactase is an example of a recent adaptive evolutionary process at work that challenges conventional ideas that humanity […]