'Quantum Jitters' Could Form Basis of Evolution, Cancer
The molecular machines that copy DNA in a living cell are amazingly fast and accurate at pairing up the correct bases—G with C and A with T—into each new double helix.
Robert Lefkowitz Shares Nobel Prize in Chemistry
Robert J. Lefkowitz MD, a Howard Hughes Medical Institute investigator who has spent his entire 39-year research career at the Duke University Medical Center, is sharing the 2012 Nobel Prize in Chemistry with Brian K. Kobilka of Stanford University School of Medicine, who was a post-doctoral fellow in Lefkowitz's lab in the 1980s.