Pretest Biologi Molekuler Fabio Unsoed: Translation

15 Questions

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Translation Quizzes & Trivia

Uji nyali menghadapi pretest keenam mata kuliah Biologi Molekuler Program Studi Biologi (S1) Fakultas Biologi UNOSEDSoal akan ditambah setiap hari sampai menjelang PRETEST di kelas... ikuti terus perkembangannya.....NILAI PRETEST BIOLOGI MOLEKULER MAHASISWA KELAS SABTUNILAI PRETEST BIOLOGI MOLEKULER MAHASISWA KELAS SELASA DAN KAMIS


Questions and Answers
  • 1. 
    Which part of translation involves the addition of amino acids to an existing polypeptide chain?
    • A. 

      Initiation

    • B. 

      Elongation

    • C. 

      Termination

    • D. 

      Amplification

    • E. 

      Recombination

  • 2. 
    This site is where the growing polypeptide chain is usually found?
    • A. 

      P site

    • B. 

      A site

    • C. 

      E site

    • D. 

      Ribosome binding site

    • E. 

      Shine–Dalgarno sequence

  • 3. 
    What happens during amino acid activation?
    • A. 

      A methyl group is attached to an amino acid

    • B. 

      An amino acid is bound to mRNA

    • C. 

      An amino acid is bound to tRNA

    • D. 

      The addition of amino acids to an existing polypeptide chain

    • E. 

      Peptide bond formation

  • 4. 
    The most common initiator codon is
    • A. 

      GUA

    • B. 

      UAA

    • C. 

      AUG

    • D. 

      UGA

    • E. 

      GAU

  • 5. 
    Most procaryotic proteins begin with this modified amino acid
    • A. 

      N-formylleucine

    • B. 

      N-formylserine

    • C. 

      N-formylhistidin

    • D. 

      N-formylisoleucine

    • E. 

      N-formylmethionine

  • 6. 
    The ribosomal site is where incoming aminoacyl-tRNA molecules bind.
    • A. 

      P-site

    • B. 

      Promoter

    • C. 

      Shine–Dalgarno

    • D. 

      A site

    • E. 

      Polysomes

  • 7. 
    A three-base sequence in mRNA that causes the insertion of a specific amino acid into protein or causes termination of translation.
    • A. 

      Codon

    • B. 

      Initiation codon

    • C. 

      Termination codon

    • D. 

      Anticodon

    • E. 

      Wobble

  • 8. 
    The ability of a tRNA that allow to translate more than one codon
    • A. 

      Wobble

    • B. 

      Degenerate

    • C. 

      Universal

    • D. 

      Overlapping

    • E. 

      Redundancy

  • 9. 
    A complex of multiple ribosomes in various stages of translation on one mRNA molecule.
    • A. 

      Polyprotein

    • B. 

      Poly-A

    • C. 

      CAP

    • D. 

      Polypeptide

    • E. 

      Polysome

  • 10. 
    An enzyme that is an integral part of the large ribosomal subunit and catalyzes the formation of peptidebonds during protein synthesis.
    • A. 

      RNA polymerase

    • B. 

      DNA polymerase

    • C. 

      Peptidyl transferase

    • D. 

      Ligase

    • E. 

      Nuclease

  • 11. 
    The exit site to which deacylated tRNAs bind on their way out of the ribosome.
    • A. 

      Shine–Dalgarno sequence

    • B. 

      Ribosome binding site

    • C. 

      P site

    • D. 

      A site

    • E. 

      E site

  • 12. 
    A reading frame that is uninterrupted by translation stop codons.
    • A. 

      Promoter

    • B. 

      ORF

    • C. 

      Termination codon

    • D. 

      Initiation codon

    • E. 

      Termination codon

  • 13. 
    A G-rich sequence (consensus = 5'-AGGAGGU-3') that is complementary to a sequence at the 3′-end of E. coli 16S rRNA.
    • A. 

      Shine–Dalgarno (SD) sequence

    • B. 

      Promoter

    • C. 

      Stop codon

    • D. 

      Initiation codon

    • E. 

      Termination codon

  • 14. 
    Attachment of an amino acid to the acceptor arm of a tRNA.
    • A. 

      Aminoacylation

    • B. 

      Translocation

    • C. 

      Initiation

    • D. 

      Termination

    • E. 

      Translation

  • 15. 
    The methionine residue is then converted to N-formylmethionine by ____________
    • A. 

      Peptidyl transferase

    • B. 

      RNA polymerase

    • C. 

      Translocase

    • D. 

      Transformylase

    • E. 

      Anticodon deaminase