Which of the following statements best defines the term operon

Asked by admin @ in Biology viewed by 326 People

Which of the following statements best defines the term operon? a. An operon is a region of RNA that consists of the coding regions of more than one gene. b. An operon is a region of DNA that consists of a single gene regulated by more than one promoter. c. An operon is a region of DNA that codes for a series of functionally related genes under the control of the same promoter. d. An operon is a region of DNA that codes for sugar-metabolizing enzymes.

Answered by admin @


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

Operons contain cluster of genes that are transcribed together into mRNA or are not expressed at all. Formed mRNA undergos splicing to create monocistronic mRNAs so that can be translated separately. Operons are more often found in prokaryotic cells but it can appear in eukaryotic cells and in viruses.  


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