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Proteins and Translation Review: Structure & Function
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Proteins and Translation Review: Structure & Function

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Questions and Answers

What is the first step in translation elongation?

  • A new peptide bond is formed between the growing chain and the new amino acid.
  • AA-tRNA binds to an empty A site. (correct)
  • The large subunit translocates.
  • The small subunit translocates by 3 nucleotides.

    • What is the role of translation elongation factors?

  • They initiate translation.
  • They terminate translation.
  • They improve the efficiency and accuracy of translation. (correct)
  • They form new peptide bonds.

    • What happens when there is a tight (correct) codon/anticodon pairing?

  • It hydrolyzes GTP by EF-Tu.
  • It triggers a conformational change in the ribosome. (correct)
  • It forms a new peptide bond.
  • It releases the AA-tRNA.

    • What is the result of the large subunit translocating?

    <p>An empty A site that can accept another AA-tRNA.</p> Signup and view all the answers

    What is the purpose of GTP hydrolysis by EF-Tu?

    <p>It drives transitions in the ribosome subunits.</p> Signup and view all the answers

    What is the function of the small subunit rRNA?

    <p>It hydrogen bonds with the codon-anticodon.</p> Signup and view all the answers

    What is the result of the small subunit translocating by 3 nucleotides?

    <p>An empty A site that can accept another AA-tRNA.</p> Signup and view all the answers

    What is the role of the EF-Tu in bacteria?

    <p>It improves the efficiency and accuracy of translation.</p> Signup and view all the answers

    What happens to EF-Tu after the hydrolysis of GTP?

    <p>It releases the AA-tRNA.</p> Signup and view all the answers

    What triggers the conformational change in the ribosome?

    <p>A tight (correct) codon/anticodon pairing.</p> Signup and view all the answers

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