Micro

49 Questions | Total Attempts: 22

SettingsSettingsSettings
Please wait...
Microbiology Quizzes & Trivia

Practice exam for Microbiology test 3.


Questions and Answers
  • 1. 
    A science that studies aspects such as transmission of biological properties from parents to offspring and expression and variation of those traits is known as what?
    • A. 

      Genetics

    • B. 

      Heredity

    • C. 

      Microbial variations

    • D. 

      All of the above

    • E. 

      A and b only

  • 2. 
    T/F  The basic unit of DNA is composed of two units: nitogen base and deoxyribose sugar.
    • A. 

      True

    • B. 

      False

  • 3. 
    T/F  Purines include thymine and cytosine.
    • A. 

      True

    • B. 

      False

  • 4. 
    T/F   Transfer RNA contains the anticodon to DNA and it functions to attach the robose sugar to the proteins at the smooth ER?
    • A. 

      True

    • B. 

      False

  • 5. 
    T/F  RNA polymerase is involved in transcription whereby it is the enzyme that binds and unwinds to DNA and also synthesizes RNA.
    • A. 

      True

    • B. 

      False

  • 6. 
    T/F  The lactose operon is an example of an inducible operon whereby a substrate of an enzyme is present before the genes are turned on.
    • A. 

      True

    • B. 

      False

  • 7. 
    Which of the following is an example of mutations?
    • A. 

      Frameshift mutation

    • B. 

      Back-mutation

    • C. 

      Nonsense mutation

    • D. 

      A and c only

    • E. 

      All of the above

  • 8. 
    T/F  Conjugation is the act at which two or more eudaryotic cells come together and exchange DNA. All cells must have a unique pilus in order for the cells to bind.
    • A. 

      True

    • B. 

      False

  • 9. 
    T/F  McClintock is known for her work in proving transformation of DNA. This process is when a vector is used to transfer DNA.
    • A. 

      True

    • B. 

      False

  • 10. 
    This test is used to measure a chemicals capacity for causing mutation
    • A. 

      AMOS test

    • B. 

      Ames test

    • C. 

      Bar-Bar test

    • D. 

      Griffith Test

    • E. 

      Resistant strain test

  • 11. 
    Genetic engineering encompasses which of the following?
    • A. 

      Genome analysis

    • B. 

      Genetic treatments

    • C. 

      Recombinant DNA technology

    • D. 

      B and c only

    • E. 

      All of the above

  • 12. 
    T/F  Exons and introns are only found in prokaryotic cells?
    • A. 

      True

    • B. 

      False

  • 13. 
    T/F  HIV virus is a DNA virus that requires the use of reverse trancriptse in order to replicate inside the host cell.
    • A. 

      True

    • B. 

      False

  • 14. 
    EcoRI and HindIII are examples of what type of macromolecule?
    • A. 

      Restriction endonuclease

    • B. 

      Enzyme that cut, cleave or break DNA

    • C. 

      Revers Transcriptase

    • D. 

      A and b only

    • E. 

      All of the above

  • 15. 
    The study of all genomes in a particular ecological niche,as opposed to individual genomes from a single speicies?
    • A. 

      Genomics

    • B. 

      Proteomics

    • C. 

      Metagenomics

    • D. 

      Metabolomics

    • E. 

      None of the above

  • 16. 
    The progression of the PCR reaction is which order
    • A. 

      Priming, extension, denaturation

    • B. 

      Denaturation, extension, priming

    • C. 

      Denaturation, priming, extension

  • 17. 
    Cloning hosts should have these characteristics
    • A. 

      Fast growing

    • B. 

      Nonpathogenic

    • C. 

      Genetically understood

    • D. 

      A and b only

    • E. 

      All of the above

  • 18. 
    A method of determing which genes are actively transcribed in a cell under a variety of conditions
    • A. 

      Recombinant DNA analysis

    • B. 

      PCR analysis

    • C. 

      Gel electrophoresis

    • D. 

      Microarray analysis

    • E. 

      DNA sequencing

  • 19. 
    T/F   Fingerprinting involves the use of endonucleases to cut DNA into fragments in order to obtain an electrrophoretic pattern that is unique to each individual.
    • A. 

      True

    • B. 

      False

  • 20. 
    T/F cDNA refers to complimentary strand of DNA that has been transcribed from mRNA. Advantage of this is that cDNA does not have introns
    • A. 

      True

    • B. 

      False

  • 21. 
    What is the anticodon on the tRNA for this sequence DNA sequence to: TGA
    • A. 

      UGU

    • B. 

      ACU

    • C. 

      ACT

    • D. 

      UGA

    • E. 

      TGA

  • 22. 
    T/F  Drugs such as insulin are produced in the lab by transfected bacteria that contain the genes for the protein. The bacteria express this protein then it is isolated and used for treatment of diabetes.
    • A. 

      True

    • B. 

      False

  • 23. 
    Which of the following is to steralize?
    • A. 

      Autoclave

    • B. 

      X-ray

    • C. 

      Filtration of liquids

    • D. 

      A and b only

    • E. 

      All of the above

  • 24. 
    T/F  Physical means by which microbes are controlled include nonionizing radiation such as UV.
    • A. 

      True

    • B. 

      False

  • 25. 
    T/F VRE refers to vancomycin required enterococci.
    • A. 

      True

    • B. 

      False