Interviewee: François Jacob. François Jacob explains why Jacques Monod chose to work with the lactose system. (DNAi Location: Code > Controlling the code > Players > François Jacob and Jacques Monod > Why the lactose system?)

It was by technical reason. Monod started on two systems, one was the lactose and the other was a maltose system, because a maltose was the same, that is, when you put the bacteria into maltose as a carbon source, it makes a series of protein which it makes only in the presence of maltose, not in the absence of maltose. But the enzyme for the lactose were much simpler to assay than the maltose one, so then he chose, he, he chose the lactose system to work in more details.

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