With a Simple DNA Test, Family Histories Are Rewritten Widespread DNA testing has shed light on the ancestry of millions of Americans. But these services have limitations, and the results can be uncertain. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Apocalypse Next? Astronomers Find a Chunk of Planet Around a Distant, Dead StarSpace DISCOVERY: Dying star WIPED OUT entire system as 'heavy metal' planet debris foundTrilobites: How Seals Took to the SeasCancer’s Trick for Dodging the Immune SystemHow Armstrong and Aldrin planted British flag on moon during Apollo 11 mission REVEALEDPlanet Nine SHOCK: Telescopes in Hawaii are hunting down mystery planet larger than Earth