Ribosome and tRNA
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Questions and Answers

What is the function of the E-Site in the ribosome?

  • Accepts initiator-tRNA & peptidyl-tRNA
  • Accepts aa-tRNA & peptide bond formation
  • Allows entry of the free tRNA
  • Allows exit of the free tRNA (correct)

    • What type of tRNA transports the first amino acid in all polypeptides?

  • Elongator tRNA
  • Decoding tRNA
  • Initiator tRNA (correct)
  • Specialized tRNA

    • What is the function of the P-Site in the ribosome?

  • Allows exit of the free tRNA
  • Allows entry of the free tRNA
  • Accepts initiator-tRNA & peptidyl-tRNA (correct)
  • Accepts aa-tRNA & peptide bond formation

    • What is the function of the A-Site in the ribosome?

    <p>Accepts aa-tRNA &amp; peptide bond formation</p> Signup and view all the answers

    What is the structure of tRNA?

    <p>Small molecule (73-93 nucleotides) with few unusual bases &amp; extensive H-bonding</p> Signup and view all the answers

    What is the function of tRNA in translation?

    <p>Transporting aa to the site of translation</p> Signup and view all the answers

    What is the role of the anticodon in tRNA?

    <p>Reading the genetic code</p> Signup and view all the answers

    What type of tRNA transports internal methionine amino acids in polypeptides?

    <p>Elongator met-tRNA</p> Signup and view all the answers

    How many types of tRNA are there?

    <blockquote> <p>22</p> </blockquote> Signup and view all the answers

    What is the function of the acceptor arm in tRNA?

    <p>Carrying aa at the 3' end</p> Signup and view all the answers

    What is the function of the E-Site in the ribosome?

    <p>Allows exit of the free tRNA</p> Signup and view all the answers

    What type of tRNA transports the first amino acid in all polypeptides?

    <p>Initiator tRNA</p> Signup and view all the answers

    What is the function of the P-Site in the ribosome?

    <p>Accepts initiator-tRNA &amp; peptidyl-tRNA</p> Signup and view all the answers

    What is the function of the A-Site in the ribosome?

    <p>Accepts aa-tRNA &amp; peptide bond formation</p> Signup and view all the answers

    What is the structure of tRNA?

    <p>Large molecule (100-120 nucleotides) with maximum unusual bases &amp; extensive H-bonding</p> Signup and view all the answers

    What is the function of tRNA in translation?

    <p>Transporting aa to the site of translation</p> Signup and view all the answers

    What is the role of the anticodon in tRNA?

    <p>Reading the genetic code</p> Signup and view all the answers

    What type of tRNA transports internal methionine amino acids in polypeptides?

    <p>Elongator met-tRNA</p> Signup and view all the answers

    How many types of tRNA are there?

    <blockquote> <p>22</p> </blockquote> Signup and view all the answers

    What is the function of the acceptor arm in tRNA?

    <p>Carrying aa at the 3' end</p> Signup and view all the answers

    What is the function of the E-Site in the ribosome?

    <p>Allows exit of the free tRNA</p> Signup and view all the answers

    What is the function of the P-Site in the ribosome?

    <p>Accepts initiator-tRNA &amp; peptidyl-tRNA</p> Signup and view all the answers

    What is the function of the A-Site in the ribosome?

    <p>Accepts aa-tRNA &amp; peptide bond formation</p> Signup and view all the answers

    What is the structure of tRNA?

    <p>Small molecule with maximum unusual bases &amp; extensive H-bonding</p> Signup and view all the answers

    What is the function of tRNA?

    <p>To transport aa to the site of translation</p> Signup and view all the answers

    What is the role of the 3' end or acceptor arm of tRNA?

    <p>To transport aa to the site of translation</p> Signup and view all the answers

    What is the role of the anticodon or decoding arm of tRNA?

    <p>To read a genetic code</p> Signup and view all the answers

    What is the role of the Initiator tRNA?

    <p>To transport the first amino acid in all polypeptides</p> Signup and view all the answers

    What is the difference between Initiator tRNA and elongator met-tRNA?

    <p>Elongator met-tRNA transports the first amino acid in all polypeptides</p> Signup and view all the answers

    How many types of tRNA are there?

    <blockquote> <p>22</p> </blockquote> Signup and view all the answers

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