An operon is:A) a gene coding for a repressor protein. B) a region of DNA consisting of the promoter, operator, and coding sequence for more than one protein. C) a region of DNA consisting of the operator and coding sequence for structural proteins. D) a region of DNA consisting of the promoter and operator sequences needed to regulate one or more structural genes. a single molecule of RNA coding for more than one protein.

Question

Waters

Biology

5 May, 22:10

An operon is:A) a gene coding for a repressor protein. B) a region of DNA consisting of the promoter, operator, and coding sequence for more than one protein. C) a region of DNA consisting of the operator and coding sequence for structural proteins. D) a region of DNA consisting of the promoter and operator sequences needed to regulate one or more structural genes. a single molecule of RNA coding for more than one protein.

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Colin Brandt · Answer 1

Answer: Option D.

A region of DNA consisting of the promoter and operator sequences needed to regulate one or more structural genes.

Explanation:

An operon is a part of the the DNA that is found in bacteria or viruses which function in transcription and genetic regulation. Operon is under control of an operator, consist of promoter, regulator and structural genes. Operon is normally under the control of a single operator in which genes coding for protein are clustered along the DNA.