pNow that DNA testing for genealogical purposes has existed for nearly a decade and a half--and been refined and improved during that time--it has established its value among family history researchers. It is now becoming accepted as another tool in the kit of well-rounded genealogists. This book covers this fast-growing application of genetics, empowering genealogists to apply this information to further their research. It will also enable general readers to understand how genetic information can be applied to verify or refute documentary research--and to break down frustrating walls that block the discovery of ancestors.ppppThe book describes the three major categories of DNA testing for family history research Y-chromosome tests for investigating paternal surname lines, mitochondrial tests for investigating maternal umbilical lines, and autosomal tests for exploring close relationships. Expert genealogist David Dowell provides guidance on deciding which test to take and identifying