Difference Between Inducible and Repressible Operon
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چکیده
An operon is a functioning unit of genomic DNA containing a cluster of genes under the control of a single promoter. Gene regulation is achieved by the control of an operon through induction or repression. Operons are of two types: inducible operons and repressible operons. Inducible operon is a type of operon which gets switched on by a substrate chemical, i.e., an inducer. In a repressible operon, the regulation is done by a chemical substance known as a co-repressor which is normally the end product of that particular metabolic pathway. This is the key difference between inducible and repressible operons.
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