Source: Cornell University Date: July 12, 2007 Evidence Of Very Recent Human Adaptation: Up To 10 Percent Of Human Genome May Have Changed Science Daily — A Cornell study of genome sequences in African-Americans, European-Americans and Chinese suggests that natural selection has caused as much as 10 percent of the human genome to change in some populations in the last 15,000 to 100,000 years, when people began migrating from Africa. DNA double helix. (Credit: National Human Genome Research Institute)The study, published in the June 1 issue of PLoS (Public Library of Science) Genetics, looked for areas where most members of...