DNA

Winter 2009

Video: Ancient DNA – bringing the past to life

Taking archeology a step beyond traditional pottery shards, Brian Kemp analyzes ancient DNA (aDNA) from bones, teeth, and desiccated feces (coprolites) to help bring prehistoric Native American cultures alive in ways never before possible. As a molecular anthropologist, Kemp compares archeological findings with genetic information to detect past demographic shifts, population interactions, and movements throughout the Americas.

By plotting aDNA together with artifacts in the ground, specific tribes in the Southwest can be seen to virtually travel across the high desert through the eons. The picture Kemp paints seems so real that one can almost hear the hunter-gatherer songs and shouts drifting in the air.

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Winter 2009

Talking turkey

As you sit down to Thanksgiving dinner, you might like to know that turkey farming in North America has been around a lot longer than you thought. New genetic tools applied to a common turkey byproduct have given turkey afficionados a lot more to think about. » More ...

Spring 2002

Lots of merit in biochem

Molecular biologist Michael Smerdon has won a 10-year $3.58 million MERIT award from the National Institute of Environmental Health Sciences (NIEHS) so that he can continue his research on repairing DNA. Smerdon was the only scientist to receive the award this year and is the 14th recipient since the NIEHS program began in 1966.

For more than 20 years, Smerdon has been doing groundbreaking work on how DNA damage, caused by chemicals and UV light, is repaired. He was among the first investigators to focus on the role that chromatin structure—the way DNA is folded and packaged within each cell—plays in the DNA repair process.

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