Jacob, François (1920–2013)
François Jacob was a French biologist who, with Jacques Monod, discovered
that a substance that they named messenger RNA (mRNA)
carried hereditary information from the cell nucleus to the sites of protein
synthesis and that certain genes, called operator genes, control the
activity of others. They shared the 1965 Noble Prize in Physiology or Medicine
with another French biologist, André Lwoff.