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Gene Regulation Quiz

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Questions and Answers

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?

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?

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?

As a single unit transcribed into a polycistronic mRNA Signup and view all the answers

What type of regulation is the lac Operon an example of?

Negative inducible Signup and view all the answers

What is the primary function of a repressor protein in gene regulation?

To bind to an operator and prevent gene expression Signup and view all the answers

Which type of gene regulation is exemplified by the lac Operon?

Negative Inducible Signup and view all the answers

What is the role of a transcription factor in positive regulation?

To bind at the promoter and enable RNA polymerase to initiate transcription Signup and view all the answers

In which type of regulation is gene expression controlled by the product of its enzyme pathway?

Repressible Regulation Signup and view all the answers

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?

Simultaneous expression of multiple proteins involved in the same pathway Signup and view all the answers

Gene Regulation Quiz

Choose a study mode

Podcast

Questions and Answers

What is the role of a repressor protein in gene regulation?

What is required for positive regulation to initiate transcription?

What regulates a gene in inducible regulation?

How are genes coding for proteins in the same pathway controlled?

What type of regulation is the lac Operon an example of?

What is the primary function of a repressor protein in gene regulation?

Which type of gene regulation is exemplified by the lac Operon?

What is the role of a transcription factor in positive regulation?

In which type of regulation is gene expression controlled by the product of its enzyme pathway?

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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