Which of the Following Statements About Gene Regulation Concerning Operon

question 53

Multiple Choice

Which of the following statements about gene regulation concerning operon is INCORRECT?

• A)A repressible gene is controlled by a regulatory protein that inhibits transcription.
• B)For a gene under negative repressible control, a small molecule is required to prevent the gene's repressor from binding to DNA.
• C)For a gene under positive repressible control, the normal state is transcription of a gene, stimulated by a transcriptional activator.
• D)A regulator gene has its own promoter and is transcribed into an independent mRNA.
• E)Presence of operon where genes of related functions are clustered is common in bacteria, but not in eukaryotes.

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