A-LevelBiologyNucleic acids and protein synthesisOct/Nov 2018Paper 4 Q68 Marks
The lac operon is a section of DNA present in the genome of Escherichia coli. The structural genes of the lac operon are only fully expressed when the bacteria are exposed to high lactose concentrations. [Figure 6.1] is a diagram showing the lac operon and a nearby region of the E. coli genome.
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