Protein Synthesis Warm Up 5

20 Questions | Total Attempts: 81

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Protein Synthesis Warm Up 5

Welcome to the electronic biology classroom of the 21st Century. This biology warm-up will test your background knowledge of protein synthesis. A gene is a segment of DNA that is located on a chromosome and that codes for a hereditary character. So this involves transcription and translation processes having both DNA and RNA molecules that directs the assembly of the proteins. The warm up has an unlimited number of attempts to help in your LEARNING and TEST-TAKING SKILLS. Each attempt will generate a random order of questions.


Questions and Answers
  • 1. 
    Which codon must appear first to show where translation should begin?
    • A. 

      UAA

    • B. 

      UGA

    • C. 

      AUG

    • D. 

      UAG

    • E. 

      CCC

  • 2. 
    Given a short sequence of 3' DNA, select the correct 5' DNA.  TAC - CCG - GCT
    • A. 

      ATG - GGC - CGA

    • B. 

      AGC - CGG - ATG

    • C. 

      CCU - AUG - CCA

    • D. 

      TAC - CCG - GCT

  • 3. 
    Use the Codons in mRNA (messenger RNA) to identify the correct amino acid for the given triple codon: G U U
    • A. 

      Valine

    • B. 

      Leucine

    • C. 

      Arginine

    • D. 

      Serine

    • E. 

      Alanine

    • F. 

      Glycine

    • G. 

      Histidine

  • 4. 
    Use the Codons in mRNA (messenger RNA) to identify the correct amino acid for the given triple codon: C A U
    • A. 

      Valine

    • B. 

      Leucine

    • C. 

      Arginine

    • D. 

      Serine

    • E. 

      Alanine

    • F. 

      Glycine

    • G. 

      Histidine

  • 5. 
    Use the Codons in mRNA (messenger RNA) to identify the correct amino acid for the given triple codon: G G A
    • A. 

      Valine

    • B. 

      Leucine

    • C. 

      Arginine

    • D. 

      Serine

    • E. 

      Alanine

    • F. 

      Glycine

    • G. 

      Histidine

  • 6. 
    Use the Codons in mRNA (messenger RNA) to identify the correct amino acid for the given triple codon: U C U. 
    • A. 

      Valine

    • B. 

      Leucine

    • C. 

      Arginine

    • D. 

      Serine

    • E. 

      Alanine

    • F. 

      Glycine

    • G. 

      Histidine

  • 7. 
    Use the Codons in mRNA (messenger RNA) to identify the correct amino acid for the given triple codon: A C A
    • A. 

      Valine

    • B. 

      Threonine

    • C. 

      Arginine

    • D. 

      Serine

    • E. 

      Alanine

    • F. 

      Glycine

    • G. 

      Histidine

  • 8. 
    Use the Codons in mRNA (messenger RNA) to identify the correct amino acid for the given triple codon: A A C
    • A. 

      Valine

    • B. 

      Threonine

    • C. 

      Asparagine

    • D. 

      Serine

    • E. 

      Alanine

    • F. 

      Glycine

    • G. 

      Aspartic Acid

  • 9. 
    Use the Codons in mRNA (messenger RNA) to identify the correct amino acid for the given triple codon: U G A
    • A. 

      STOP

    • B. 

      Threonine

    • C. 

      Arginine

    • D. 

      Serine

    • E. 

      Alanine

    • F. 

      Glycine

    • G. 

      Aspartic Acid

  • 10. 
    The _____ is an enzyme that unwinds the DNA molecule during replication.  (Please observe the short video http://www.youtube.com/watch?feature=player_detailpage&v=zdDkiRw1PdU
    • A. 

      DNA Helicase

    • B. 

      RNA Helicase

    • C. 

      DNA Polymerase

    • D. 

      Leading Strand

    • E. 

      Lagging Strand

    • F. 

      DNA Ligase

    • G. 

      Okazaki Fragments

  • 11. 
    One 3" - 5" side of the DNA molecule follows the helicase as it unwinds is called a(n)_____.
    • A. 

      DNA Helicase

    • B. 

      RNA Helicase

    • C. 

      DNA Polymerase

    • D. 

      Leading Strand

    • E. 

      Lagging Strand

    • F. 

      DNA Ligase

    • G. 

      Okazaki Fragments

  • 12. 
    The _____ strand of the DNA molecule is moving away from the helicase in the 5' to 3' direction.
    • A. 

      DNA Helicase

    • B. 

      RNA Helicase

    • C. 

      DNA Polymerase

    • D. 

      Leading Strand

    • E. 

      Lagging Strand

    • F. 

      DNA Ligase

    • G. 

      Okazaki Fragments

  • 13. 
    The replication process may form several fragments. What is the name assigned to these particles?
    • A. 

      DNA Helicase

    • B. 

      RNA Helicase

    • C. 

      DNA Polymerase

    • D. 

      Leading Strand

    • E. 

      Lagging Strand

    • F. 

      DNA Ligase

    • G. 

      Okazaki Fragments

  • 14. 
    What enzyme is used to bind the DNA molecule together?
    • A. 

      DNA Helicase

    • B. 

      RNA Helicase

    • C. 

      DNA Polymerase

    • D. 

      Leading Strand

    • E. 

      Lagging Strand

    • F. 

      DNA Ligase

    • G. 

      Okazaki Fragments

  • 15. 
    Identify all STOP codons in mRNA, do not code for any amino acids, but instead signal for translation to terminate. (Please remember to check all correct answers to receive full credit for this question.)
    • A. 

      UAA

    • B. 

      UAG

    • C. 

      UGA

    • D. 

      AUU

    • E. 

      GAA

    • F. 

      UUU

  • 16. 
    A group of three mRNA nucleotides is called a(n)_____.  (Please enter your answer in all lower case letters.)
  • 17. 
    The start codon for mRNA is AUG. Which DNA nucleotides codes the start codon from the 3' - 5' molecule?
    • A. 

      TAC

    • B. 

      CAT

    • C. 

      AUG

    • D. 

      GTA

    • E. 

      ATC

  • 18. 
    How many different codons in mRNA represent Glycine?
    • A. 

      2

    • B. 

      4

    • C. 

      6

    • D. 

      8

  • 19. 
    What effect do codons have on protein synthesis?
    • A. 

      There is no effect observed.

    • B. 

      Each codon are amino acid specific

    • C. 

      Each codon is required for ATP production.

    • D. 

      Each codon is nucleotide enzyme specific.

  • 20. 
    What causes a ribosome to start translating an mRNA molecule?
    • A. 

      The presence of the stop codon, UGA.

    • B. 

      The presence of the start codon, AUG

    • C. 

      The presence of the stop codon, UGG

    • D. 

      The presence of mRNA polypeptides.

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