Severo Ochoa de Albornoz was a Spanish physician and biochemist, and winner of the 1959 Nobel Prize in Physiology or Medicine together with Arthur Kornberg for their discovery of "the mechanisms in the biological synthesis of deoxyribonucleic acid (DNA)". The Nobel Prize in Physiology or Medicine 1959, announced October 15, 1959. Severo Ochoa and Arthur Kornberg, “for their discovery of the mechanisms in the biological synthesis of ribonucleic acid and deoxyribonucleic acid”. Severo Ochoa: born 1905, Luarca, Spain. Arthur Kornberg: born 1918, Brooklyn, NY, USA. Wiki link Wiki link Data: the Nobel Foundation (CC0).