Race and identity in many ways define who we think we are, while modern genetics can challenge those notions. To delve into these issues, I am involved with a communication studies project at West Chester University in Pennsylvania that explores narratives at the intersection of race and identity.

For the last decade, I have invited hundreds of people to be part of ancestry DNA tests. But first I ask people how they identify themselves racially. It has been very interesting to explore their feelings about the differences between how they define themselves and what their DNA makeup shows when the test results come in.

Biologically, our ancestral differences reflect only a 0.1 percent difference in DNA. Yet we often cling to those differences — both in unity with our fellow people of origin and, at times, in divisiveness.

Over all, the experiment has provided a special opportunity to explore the lines of race. I found that as human beings, our strategies for survival are the same, and our similarities far outweigh our differences.