Nobel Media AB
The Nobel Prize: Severo Ochoa Nobel Lecture
At this site download and read Severo Ochoa's Nobel Lecture entitled "Enzymatic synthesis of ribonucleic acid," which was originally given December 11, 1959. Lecture is available in pdf format.
Nobel Media AB
The Nobel Prize: Severo Ochoa Biographical
Read about the 1959 co-recipient of the Nobel Prize in Physiology -- Severo Ochoa -- who contributed to the "discovery of the mechanisms in the biological synthesis of ribonucleic acid and deoxyribobucleic acid."