Sir John Bertrand Gurdon was a British developmental biologist, best known for his pioneering research in Cellular differentiation and nuclear transplantation and cloning. The Nobel Prize in Physiology or Medicine 2012, announced October 8, 2012. Sir John B. Gurdon and Shinya Yamanaka, “for the discovery that mature cells can be reprogrammed to become pluripotent”. Sir John B. Gurdon: born 1933, Dippenhall, United Kingdom. Shinya Yamanaka: born 1962, Osaka, Japan. Wiki link Wiki link Data: the Nobel Foundation (CC0).