Mary Carmichael, a science editor for Newsweek, is in the midst of a week-long dilemma. This Friday, after reading a series of articles written by members of the DTC genetic testing community, she will decide whether she should purchase a genome-wide SNP analysis. Although the decision might be a simple one for some, in light of the recent critique of DTC genetic testing in the media, in the literature, and by the government, it is certainly understandable that Mary is looking for further insight into her decision.
Today, Mary is asking “What Can I Learn From At-Home DNA Tests?” and has gathered answers to her question from a wide variety of writers and scientists, including myself. Since the Newsweek site only has space for a brief introduction to each topic, this post is meant to be a more in-depth answer what Mary could learn about her ancestry from a DTC test.