Atlantic {Ans: If scientists find that a new drug works works better in African Americans because of a certain mutation common among them, then it's easy to believe that races are genetically meaningful categories.}Slate {Ans: The problem is that DNA snippets, or markers, are inconsistent. Sometimes they are passed on and sometimes they are not, and whether they are or aren't is random.}UCL {Ans: Genetic ancestry testing is the use of DNA information to make inferences about someone's "deep" ancestry, hundreds or thousands of years into the past. Genetic genealogy on the other hand combines DNA testing with genealogical and historical records, and typically makes use of large databases to identify matches, or direct comparisons to test for expected matches. There is some overlap between the two, but genetic genealogy is generally more reliable because of its use of additional information}Ancestry {Ans: What results say: Your AncestryDNA results include information about your genetic ethnicity estimates and identifies potential DNA matches, linking you to others who have taken the AncestryDNA test.}Slate {Ans: Sure, a large percentage of Native Americans may share certain genetic markers. But many Native Americans may lack the same marker, and many non-Native