Quiz About To Protein Synthesis

6 Questions | Total Attempts: 235

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Quiz About To Protein Synthesis - Quiz

All about protein synthesis


Questions and Answers
  • 1. 
    What are the termination codons?
    • A. 

      UAG, UGA, UAA

    • B. 

      UAG, UGA, UCA

    • C. 

      UAA, UCA, UAC

    • D. 

      UCC, UCA, UAC

    • E. 

      UAG, UCA, UGA

  • 2. 
    The genetic code is NOT
    • A. 

      Commaless

    • B. 

      Degerate

    • C. 

      Overlapping

    • D. 

      Specific

  • 3. 
    In a nonsense mutation...
    • A. 

      The codon containing the changed base may code for the same amino acid.

    • B. 

      The codon containing the changed base may code for a different amino acid.

    • C. 

      The codon containing the changed base may become a termination codon.

  • 4. 
    When tRNA has a covalently attached amino acid, it is said to be ____, and the amino acid is said to be _______
    • A. 

      Charged, activated

    • B. 

      Charged, inactivated

    • C. 

      Uncharged, activated

    • D. 

      Uncharged, inactivated

  • 5. 
    Which enzyme catalyzes the formation of the ester bond between the carboxyl group of an amino acid and the 2' or 3' hydroxyl group of the terminal ribose of the tRNA?
    • A. 

      Peptidyl transferase

    • B. 

      AP-endonuclease

    • C. 

      Aminoacyl-tRNA synthetase

    • D. 

      Uracil-DNA glycosylase

    • E. 

      UV-endonuclease

  • 6. 
    In the wobble hypothesis, which base is not as spatially defined as the other two bases?
    • A. 

      The base at the 3' end of the anticodon

    • B. 

      The base at the 5' end of the anticodon

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