914-765-0688. 1  Beehive Restaurant, serving Traditional American with a few Mediterranean dishes, is located at 30 Old Route 22, Armonk, NY 10504 in Westchester County. 2  The Cafe at Mariani Gardens is located at 45 Bedford Road in Armonk, NY 10504 in Westchester County.
The Discovery of the lac Operon. In 1961, Francois Jacob and Jacques Monod proposed the operon model of gene regulation in bacteria. The model was based on their study of the genes in E. coli that code for enzymes that affect the breakdown of lactose. Francois Jacob and Jacques Monod. Photo courtesy of Archive Photo. Because of the pioneering work of Jacob and Monod, the lac operon is typically used to illustrate gene regulation in bacteria.
The lac Operon-an inducible system. The first control system for enzyme production worked out at the molecular level described the control of enzymes that are produced in response to the presence of the sugar lactose in E. coli cell. The work was performed by Jacob and Monod for which they were awarded the Nobel Prize.n this system lactose acts as an effector molecule. Effector molecule-a molecule that interacts with the repressor and affects the affinity of the repressor for the operator With the above information, we can now predict the effect that various mutants will have on lac operon gene expression.