Operon is a

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(B) An operon is a functional unit of $DNA$ containing a cluster of genes under the control of a single promoter.It consists of structural genes,an op

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set of closely placed genes regulating a metabolic pathway in prokaryotes.

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(B) An operon is a functional unit of $DNA$ containing a cluster of genes under the control of a single promoter.It consists of structural genes,an operator,and a promoter.Operons are primarily found in prokaryotes,where they regulate metabolic pathways by coordinating the expression of genes involved in the same process.Therefore,it is a set of closely placed genes regulating a metabolic pathway in prokaryotes.

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