Monod, Jacques (zhäk mônō`), 1910–76, French biologist, educated at the Univ. of Paris (D.Sc., 1941). He was a leader of the French resistance in World War II. He shared the 1965 Nobel Prize in Physiology or Medicine with André Lwoff and François Jacob for discoveries concerning molecular genetic mechanisms inside body cells. His publications include Chance and Necessity (1971) and Of Microbes and Life (ed. with Ernest Borek, 1971).