Individual Differences Caused by Shuffled Chunks of DNA in the Human Genome, Yale University Study  
9/28/2007 6:51:18 AM

New Haven, Conn. — A study by Yale researchers offers a new view of what causes the greatest genetic variability among individuals — suggesting that it is due less to single point mutations than to the presence of structural changes that cause extended segments of the human genome to be missing, rearranged or present in extra copies.