Operon concept | Regulation of gene expression | L arabinose operon | molecular basis of inheritance

operon is a group of functionally related genes which act as single transcriptional unit operon consists of structural gene, regulatory gene, promotor, operator, and initiator region operon - inducible and repressible operon Inducible (positive regulator) - regulatory gene act as activator ➡️ RNA polymerase bind to promoter🔄 switch on the transcription Repressible (Negative regulator) - regulatory gene act as Repressor ➡️ RNA polymerase doesn't bind to promoter🔄 switch off the transcription L Arabinose operon is present in E.coli required for the metabolism of L arabinose

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