Other Free Encyclopedias » Medicine Encyclopedia » Genetics in Medicine - Part 3 » Operon - The Discovery Of Operons, Typical Features Of Operons, Other Typical Characteristics

Operon - The Discovery Of Operons

genes lac metabolism lactose

French scientists Jacques Monod and François Jacob first coined the term "operon" in a short paper published in 1960 in the Proceedings of the French Academy of Sciences. They elaborated the concept of the operon in several papers that appeared in 1961, based on their studies on the lac genes (genes for the metabolism of lactose sugar) of the bacterium Escherichia coli and the genes of bacteriophage lambda. Monod and Jacob received the Nobel Prize in 1985 for this work.

Figure 1. The lac operon. A single straight line signifies the double-stranded DNA molecule. The lac operon includes genes and control elements which are needed for metabolism of lactose.

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