Gene Expression and Protein Synthesis Quiz
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Questions and Answers

What are housekeeping proteins in a multicellular organism responsible for?

  • Energy production
  • Cell differentiation
  • DNA replication (correct)
  • Protein synthesis

    • Why is it more efficient to turn on genes only when they are required?

  • It reduces the need for transcription factors
  • It leads to cell differentiation
  • It prevents the formation of specialized proteins
  • It requires a significant amount of energy to always express every gene (correct)

    • What can cells change in response to external signals?

  • Their metabolic pathways
  • Their reproductive cycle
  • Their DNA structure
  • The expression of their genes (correct)

    • What do regulatory sequences in the promoter region contain?

    <p>Sites to which transcription factors can bind</p> Signup and view all the answers

    What is the role of repressors in gene regulation?

    <p>To switch off gene expression</p> Signup and view all the answers

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