DNA, Protein Synthesis & Mutations

30 Questions | Total Attempts: 94

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DNA, Protein Synthesis & Mutations

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Questions and Answers
  • 1. 
    The following diagram represents which of the following selections?
    • A. 

      Purines

    • B. 

      Pyrimidines

    • C. 

      Nucleotide

    • D. 

      Deoxyribose Sugars

  • 2. 
    The dashed lines between the two bases represents...
    • A. 

      Ionic bonding

    • B. 

      Pyrimidial bonding

    • C. 

      Phosphate-sugar bonds

    • D. 

      Hydrogen bonds

  • 3. 
    The backbone of the DNA structure is made up of...
    • A. 

      Alternating phosphates and sugar molecules

    • B. 

      Nucleotides

    • C. 

      Alternating bases and sugars

    • D. 

      Alternating phosphates and bases

  • 4. 
    A radioactive isotope of which element would be useful in tagging a molecule of DNA to differentiate it from carbohydrates, lipids, and proteins?
    • A. 

      Sulfur

    • B. 

      Carbon

    • C. 

      Phosphorous

    • D. 

      Nitrogen

  • 5. 
    TRUE or FALSE: DNA is found the nucleus in eukaryotic cells.
    • A. 

      TRUE

    • B. 

      FALSE

  • 6. 
    According to Chargaff, if an organism’s DNA is 19% thymine, what are the other percentages that account for the other three DNA base pairs?Thymine: 19%Adenine: [blank]% 
  • 7. 
    According to Chargaff, if an organism’s DNA is 19% thymine, what are the other percentages that account for the other three DNA base pairs?Thymine: 19%Guanine: [blank]% 
  • 8. 
    According to Chargaff, if an organism’s DNA is 19% thymine, what are the other percentages that account for the other three DNA base pairs?Thymine: 19%Cytosine: [blank]% 
  • 9. 
    A gene is:
    • A. 

      A piece of clothing that is placed upon the bipedal legs of human.

    • B. 

      A chromosome carrier

    • C. 

      A section of DNA that codes for a protein or RNA molecule.

    • D. 

      A regulatory sequence

    • E. 

      An exon

  • 10. 
    What is made during transcription?
    • A. 

      MRNA will make a copy of the DNA

    • B. 

      DNA makes a copy of itself

    • C. 

      TRNA will copy the DNA

  • 11. 
    If you have a strand of DNA with the bases C C C   G G G   T T T   A T A, what would the mRNA look like?
    • A. 

      G G G C C C A A A T A T

    • B. 

      G G G G G G A A A T U T

    • C. 

      G G G C C C A A A U A U

  • 12. 
    Where does transcription take place?
    • A. 

      Ribosomes

    • B. 

      Nucleus

    • C. 

      Mitochondria

  • 13. 
    Initiation of translation in eukaryotes requires which of the following?
    • A. 

      Recognition of Shine Dalgarno sequence

    • B. 

      5' Cap on mRNA

    • C. 

      3' Poly A tail on mRNA

    • D. 

      Initiator tRNA

  • 14. 
    Translation occurs in the: 
    • A. 

      Nucleolus.

    • B. 

      Golgi apparatus.

    • C. 

      Cytoplasm.

    • D. 

      Intercellular space.

    • E. 

      Center of a black hole.

  • 15. 
    Which of the following is NOT a type of RNA?
    • A. 

      Messenger

    • B. 

      Transcription

    • C. 

      Transfer

    • D. 

      Ribosomal

    • E. 

      These are all types of RNA

  • 16. 
    Several ribosomes can be translating a mRNA at the same time. When seen under the electron microscope, this cluster of ribosomes is called a _______. 
  • 17. 
    All cells receive a copy of all genes.
    • A. 

      True

    • B. 

      False

  • 18. 
    Where in the cell would rRNA be found?
    • A. 

      Nucleus

    • B. 

      Ribosomes

    • C. 

      Golgi Apparatus

    • D. 

      Cholorplast

  • 19. 
    Classify these things as occurring in prokaryotes, eukaryotes, or both.    Single loop of DNA
    • A. 

      Prokaryotes

    • B. 

      Eukaryotes

    • C. 

      Both

  • 20. 
    Classify these things as occurring in prokaryotes, eukaryotes, or both.    Chromosomes wound around histones
    • A. 

      Prokaryotes

    • B. 

      Eukaryotes

    • C. 

      Both

  • 21. 
    Classify these things as occurring in prokaryotes, eukaryotes, or both. Multiple sites of origin in DNA replication
    • A. 

      Prokaryotes

    • B. 

      Eukaryotes

    • C. 

      Both

  • 22. 
    Classify these things as occurring in prokaryotes, eukaryotes, or both    Single origin site for DNA Replication    
    • A. 

      Prokaryotes

    • B. 

      Eukaryotes

    • C. 

      Both

  • 23. 
    Classify these things as occurring in prokaryotes, eukaryotes, or both.    Uses DNA polymerase  
    • A. 

      Prokaryotes

    • B. 

      Eukaryotes

    • C. 

      Both

  • 24. 
    Classify these things as occurring in prokaryotes, eukaryotes, or both.    RNA is processed after transcription
    • A. 

      Prokaryotes

    • B. 

      Eukaryotes

    • C. 

      Both

  • 25. 
    Classify these things as occurring in prokaryotes, eukaryotes, or both.     Transcription/translation can be coupled  
    • A. 

      Prokaryotes

    • B. 

      Eukaryotes

    • C. 

      Both

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