.....American Indian lineage has been traced to a tiny region of Russia called Altai, which borders China, Mongolia and Kazakhstan. Between 13,000 and 14,000 years ago, these Altaians trekked thousands of miles, up through Russia/Siberia, eventually crossing the then-exposed Bering land mass into the Americas. "Altai is a key area because it's a place where people have been coming and going for thousands and thousands of years," said Dr. Theodore Schurr, from the University of Pennsylvania. Dr. Schurr's team checked Altai DNA samples for markers in mitochondrial DNA, which is always passed on by mothers, and Y chromosome DNA, which...