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Questions and Answers
What is the role of a repressor protein in gene regulation?
What is the role of a repressor protein in gene regulation?
- It binds to a promoter to initiate transcription
- It enhances RNA polymerase activity
- It binds to an operator to prevent gene expression (correct)
- It activates the transcription factor
What is required for positive regulation to initiate transcription?
What is required for positive regulation to initiate transcription?
- Transcription factor binding at the promoter (correct)
- Product of the gene's enzyme pathway
- Repressor protein binding at the operator
- Presence of the gene's substrate
What regulates a gene in inducible regulation?
What regulates a gene in inducible regulation?
- Transcription factor binding at the promoter
- Presence of its substrate (correct)
- Repressor protein binding at the operator
- Product of its enzyme pathway
How are genes coding for proteins in the same pathway controlled?
How are genes coding for proteins in the same pathway controlled?
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What type of regulation is the lac Operon an example of?
What type of regulation is the lac Operon an example of?
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What is the primary function of a repressor protein in gene regulation?
What is the primary function of a repressor protein in gene regulation?
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Which type of gene regulation is exemplified by the lac Operon?
Which type of gene regulation is exemplified by the lac Operon?
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What is the role of a transcription factor in positive regulation?
What is the role of a transcription factor in positive regulation?
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In which type of regulation is gene expression controlled by the product of its enzyme pathway?
In which type of regulation is gene expression controlled by the product of its enzyme pathway?
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What is the outcome of genes coding for proteins in the same pathway being controlled as a single unit and transcribed into a polycistronic mRNA?
What is the outcome of genes coding for proteins in the same pathway being controlled as a single unit and transcribed into a polycistronic mRNA?
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