Nobel laureate Arthur Kornberg, left, smiles with his son Roger D. Kornberg, of Stanford University, who won the Nobel Prize in chemistry Wednesday. He was awarded the prize for his studies of how cells take information from genes to produce proteins, a process that could provide insight into defeating cancer and advancing stem cell research. Arthur Kornberg shared the 1959 Nobel medicine prize with Severo Ochoa, for their studies of how genetic information is transferred from one DNA molecule to another.