Positive Regulation of Gene Expression Has a Specific Meaning Relating

question 47

Multiple Choice

Positive regulation of gene expression has a specific meaning relating to the effect of a regulatory protein on the gene in question. In which of the following systems does positive regulation occur?

• A) the lac repressor lac operator system
• B) catabolite repression
• C) the trp operon
• D) the lysogenic pathway of lambda.
• E) none is true

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