Microbiology: Chapter 9

21 Questions | Total Attempts: 256

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Microbiology Quizzes & Trivia

Questions and Answers
  • 1. 
    What is the correct direction from which information flows?
    • A. 

      RNA>Proteins>DNA

    • B. 

      DNA>Proteins>RNA

    • C. 

      DNA>RNA>Proteins

    • D. 

      RNA>DNA>Proteins

  • 2. 
    Match the word to its definition: Replication
    • A. 

      DNA copies itself before cell division

    • B. 

      DNA makes a mRNA copy of itself during

    • C. 

      Messenger RNA directs the synthesis of a protein

  • 3. 
    Match the word to its definition: Transcription
    • A. 

      DNA copies itself before cell division

    • B. 

      DNA makes a mRNA copy of itself during

    • C. 

      Messenger RNA directs the synthesis of a protein

  • 4. 
    Match the word to its definition: Translation
    • A. 

      Messenger RNA directs the synthesis of a protein

    • B. 

      DNA makes a mRNA copy of itself during

    • C. 

      Messenger RNA directs the synthesis of a protein

  • 5. 
    Can bacteria have sexual relations or sexual iife cycles?
    • A. 

      Yes

    • B. 

      No

    • C. 

      Only sexual life cycles

  • 6. 
    The transfer of bacterial genes from one cell to another mediated by a bacteriophage (a virus that infects bacteria).
    • A. 

      Transduction

    • B. 

      Conjugation

    • C. 

      Transformation

  • 7. 
    The uptake of naked DNA by a cell. 
    • A. 

      Transduction

    • B. 

      Conjugation

    • C. 

      Transformation

  • 8. 
    The transfer of genetic material from one bacterial cell (the donor) to another (the recipient) by direct contact. 
    • A. 

      Transduction

    • B. 

      Conjugation

    • C. 

      Transformation

  • 9. 
    Transformation was discovered by Griffeth in an experiment that eventually led to the idea that DNA is the genetic material. 
    • A. 

      True

    • B. 

      False

  • 10. 
    Griffiths experiment involved bacteria and mice, with what bacteria?
    • A. 

      Streptococcus pneumoniae

    • B. 

      Stapholococcus pneumoniae

    • C. 

      Bacillicoccus pneumoniae

  • 11. 
    The smooth strains of bacteria produced a/an __________ in the mice, and rough strains did not. We know this because of the ______.
    • A. 

      Increase in health, capsule

    • B. 

      Increase in illness, capsule

    • C. 

      Decrease in energy, virus

  • 12. 
    A mix with living rough strain of bacteria with dead smooth strain bacteria, injected into the mouse equals which of these? 
    • A. 

      No Problem

    • B. 

      Minor health problems

    • C. 

      Death

  • 13. 
    Was Griffith right when he reasoned that something from the dead smooth cells of the bacteria was able to transform the rough cells into smooth cells?
    • A. 

      Yes

    • B. 

      No

    • C. 

      No, they did not transform, transduction took place

  • 14. 
    What plasmid was found when conjugation was initially discovered?
    • A. 

      D Factor

    • B. 

      F Factor

    • C. 

      E Factor

    • D. 

      A Factor

  • 15. 
    During conjugation a plasmid ______, and directs the formation of the pilus, from this the _____moves to a recipient cell
    • A. 

      Copies itself, copy of it

    • B. 

      Reaches, piece of it

    • C. 

      Moves, metabolite

  • 16. 
    Cells containing the F factor are referred to as what?
    • A. 

      F

    • B. 

      F+

    • C. 

      F-

  • 17. 
    The cell containing the F factor can change cells that are?
    • A. 

      F-

    • B. 

      F+

    • C. 

      F

  • 18. 
    If the F factor becomes integrated into the bacterial chromosome, we call that an Hfr strain because when it conjugates it causes a...
    • A. 

      Low frequency of recombination of bacterial genes

    • B. 

      Slight frequency of recombination of bacterial genes

    • C. 

      High frequency of recombination of bacterial genes

  • 19. 
    When a virus infects a bacterial cell, it does what?
    • A. 

      Replicates its own DNA and the bacteria remains healthy

    • B. 

      Replicates itself and destroys bacteria

    • C. 

      Replicates its own DNA and degrades the bacterial DNA

  • 20. 
    Generalized transduction is
    • A. 

      Any bacteriophage can be involved and any genes may be transferred

    • B. 

      Only temperate phages may be involved and only the genes adjacent to their integration sites may be transferred.

  • 21. 
    Specialized transduction is 
    • A. 

      Any bacteriophage can be involved and any genes may be transferred

    • B. 

      Only temperate phages may be involved and only the genes adjacent to their integration sites may be transferred.