dnaRoger Kornberg, a biochemist at Stanford University, won the Nobel Prize in chemistry for work with DNA and genes… just like his father before him, Arthur Kornberg, who shared the 1959 Nobel medicine prize for studies involving genetic information… The discovery of this year’s chemisty laureate is crucial to unlocking the medical promise of stem cells, and of understanding diseases, such as cancer. The win completes an American sweep of the science prizes, a feat that occurred only twice before, in 1946 and 1976. (Wash Post)