Extras

Half Sisters Unite Thanks to DNA Testing
In 2018, June Smith takes a consumer DNA test, hoping to solve a longstanding mystery.
Half Sisters Unite Thanks to DNA Testing

How—and why—DNA Testing Uses Biased Reference Databases
Are DNA ancestry tests equally accurate for all test takers?
How—and why—DNA Testing Uses Biased Reference Databases

What can DNA testing companies reveal about our ancestry and health, and at what risk?