Native American tribes and would-be members are turning to DNA tests. But the hunt for genetic truth has some asking: What does it mean to be Native American?

DNA testing companies are rolling out algorithm updates, spotlighting the fickleness of ethnicity results, and perhaps reinforcing some troubling beliefs.

The genetic testing company 23andMe has filed for bankruptcy, prompting people who’ve used the service and sent in DNA samples to be analyzed to wonder what will happen to their genetic data ...

What does this mean for doctors? It's a big step in revealing vulnerabilities to certain diseases, or tailoring medical treatments.