Gene Regulation Quiz

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Questions and Answers

What is the lac operon an example of?

  • Negative and positive control (correct)
  • Only negative control
  • Transcription and translation
  • Only positive control

What can misregulated gene expression lead to?

  • Increased gene expression
  • Abnormal phenotypes (correct)
  • Enhanced cell functioning
  • Reduced genetic variation

What do structural genes code for?

  • Non-essential proteins
  • RNA molecules
  • Proteins essential for cell functioning (correct)
  • Regulatory proteins

How are operons regulated?

<p>By cis-acting regulatory regions binding to trans-acting molecules (D)</p> Signup and view all the answers

What is the trp operon an example of?

<p>A repressible system (C)</p> Signup and view all the answers

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