Which of the following statements best defines the term operon

Asked by wiki @ in Physics viewed by 640 People

Which of the following statements best defines the term operon?

An operon is a region of DNA that consists of a single gene regulated by more than one promoter.
An operon is a region of RNA that consists of the coding regions of more than one gene.
An operon is a region of DNA that codes for a series of functionally related genes under the control of the same promoter.
An operon is a region of DNA that codes for sugar-metabolizing enzymes.

Answered by wiki @

Answer:

An operon is a region of DNA that codes for a series of functionally related genes under the control of the same promoter.

Explanation:

This organisation of genes is normally present in bacteria. For example, genes involved in lactose metabolism are clustered in the lac operon of E. coli, and genes involved in tryptophan metabolism are in the trp operon.

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