A molecule, usually a product of a specific metabolic pathway (for example, nuclear protein), which combines with and activates a repressor produced by a regulator gene. The activated repressor then attaches to an operator gene site and inhibits activity of the structural genes.
fascism [(fash-iz-uhm)] A system of government that flourished in Europe from the 1920s to the end of World War II. Germany under Adolf Hitler, Italy under Mussolini, and Spain under Franco were all fascist states.
Fascism, political ideology and mass movement that dominated many parts of central, southern, and eastern Europe between 1919 and 1945 and that also had adherents in western Europe, the United States, South Africa, Japan, Latin America, and the Middle East.