The fundamental problem of chemical physiology and of embryology is to understand why tissue cells do not all express,all the time,all the potentialities inherent in their genome. -Francois Jacob and Jacques Monod Journal of Molecular Biology,1961 生物 Francois lacob lacques Monod,1910-1976 5 The fundamental problem of chemical physiology and of embryology is to understand why tissue cells do not all express, all the time, all the potentialities inherent in their genome. —François Jacob and Jacques Monod Journal of Molecular Biology, 1961 生物化学与分子生物学教研室 5