François Jacob was a French biologist. He shared the 1965 Nobel Prize in Physiology or Medicine with Jacques Monod and André Lwoff "for their discoveries concerning genetic control of enzyme and virus synthesis". He and Monod originated the idea that control of enzyme levels in all cells occurs through regulation of transcription. For his work in the French Resistance, he received the Cross of Liberation, the Légion d'honneur and Croix de guerre. The Nobel Prize in Physiology or Medicine 1965, announced October 14, 1965. François Jacob, André Lwoff, and Jacques Monod, “for their discoveries concerning genetic control of enzyme and virus synthesis”. François Jacob: born 1920, Nancy, France. André Lwoff: born 1902, Ainay-le-Château, France. Jacques Monod: born 1910, Paris, France. Wiki link Wiki link Wiki link Data: the Nobel Foundation (CC0).