Which of the Following Is FALSE Regarding Regulation of Gene

question 21

Multiple Choice

Which of the following is FALSE regarding regulation of gene expression in bacteria?

• A) Negative control of transcription involves the binding of a repressor protein to a regulatory DNA sequence, with the consequence of preventing transcription.
• B) Repressor proteins commonly contain DNA- binding and allosteric domains.
• C) There can be transcriptional regulation for the initiation and the amount of transcription, as well as post- transcriptional regulatory mechanisms.
• D) Regulated transcription is necessary; constitutive transcription, continuously transcribing genes with no regulatory control, does not occur without mutation.
• E) Positive control of transcription involves the binding of an activator protein to a regulatory DNA sequence, with the result of initiating transcription.

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