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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?

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

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

It drives transitions in the ribosome subunits. Signup and view all the answers

What is the function of the small subunit rRNA?

It hydrogen bonds with the codon-anticodon. Signup and view all the answers

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

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

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

It improves the efficiency and accuracy of translation. Signup and view all the answers

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

It releases the AA-tRNA. Signup and view all the answers

What triggers the conformational change in the ribosome?

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