640: Stressed Cells Spark DNA Repair Missteps And Speed Evolution

Thanks to afarensis for point out Stressed Cells Spark DNA Repair Missteps And Speed Evolution:

When Dr. Susan Rosenberg, professor of molecular and human genetics at Baylor College of Medicine, first published her finding that the mutation rate increased in bacteria stressed by starvation, sometimes resulting in a rare change that benefited the bacteria, it was controversial.

In a report in the current issue of the journal Molecular Cell, she and her colleagues describe not only how it happens but also show that this only occurs at a special time and place in the stressed cells.

Research on evolution that reveals how cancer works, how the body fights it, and how new mutations arise.

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