Microbiology: Chapter 9

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  • 1/21 Questions

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

    • True
    • False
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  • 2. 

    What is the correct direction from which information flows?

    • RNA>Proteins>DNA

    • DNA>Proteins>RNA

    • DNA>RNA>Proteins

    • RNA>DNA>Proteins

    Correct Answer
    A. DNA>RNA>Proteins
  • 3. 

    Specialized transduction is 

    • Any bacteriophage can be involved and any genes may be transferred

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

    Correct Answer
    A. Only temperate phages may be involved and only the genes adjacent to their integration sites may be transferred.
  • 4. 

    What plasmid was found when conjugation was initially discovered?

    • D Factor

    • F Factor

    • E Factor

    • A Factor

    Correct Answer
    A. F Factor
  • 5. 

    Cells containing the F factor are referred to as what?

    • F

    • F+

    • F-

    Correct Answer
    A. F+
  • 6. 

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

    • No Problem

    • Minor health problems

    • Death

    Correct Answer
    A. Death
  • 7. 

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

    • Increase in health, capsule

    • Increase in illness, capsule

    • Decrease in energy, virus

    Correct Answer
    A. Increase in illness, capsule
  • 8. 

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

    • Low frequency of recombination of bacterial genes

    • Slight frequency of recombination of bacterial genes

    • High frequency of recombination of bacterial genes

    Correct Answer
    A. High frequency of recombination of bacterial genes
  • 9. 

    Generalized transduction is

    • Any bacteriophage can be involved and any genes may be transferred

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

    Correct Answer
    A. Any bacteriophage can be involved and any genes may be transferred
  • 10. 

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

    • Transduction

    • Conjugation

    • Transformation

    Correct Answer
    A. Conjugation
  • 11. 

    The cell containing the F factor can change cells that are?

    • F-

    • F+

    • F

    Correct Answer
    A. F-
  • 12. 

    Match the word to its definition: Transcription

    • DNA copies itself before cell division

    • DNA makes a mRNA copy of itself during

    • Messenger RNA directs the synthesis of a protein

    Correct Answer
    A. DNA makes a mRNA copy of itself during
  • 13. 

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

    • Transduction

    • Conjugation

    • Transformation

    Correct Answer
    A. Transduction
  • 14. 

    Match the word to its definition: Replication

    • DNA copies itself before cell division

    • DNA makes a mRNA copy of itself during

    • Messenger RNA directs the synthesis of a protein

    Correct Answer
    A. DNA copies itself before cell division
  • 15. 

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

    • Copies itself, copy of it

    • Reaches, piece of it

    • Moves, metabolite

    Correct Answer
    A. Copies itself, copy of it
  • 16. 

    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?

    • Yes

    • No

    • No, they did not transform, transduction took place

    Correct Answer
    A. Yes
  • 17. 

    When a virus infects a bacterial cell, it does what?

    • Replicates its own DNA and the bacteria remains healthy

    • Replicates itself and destroys bacteria

    • Replicates its own DNA and degrades the bacterial DNA

    Correct Answer
    A. Replicates its own DNA and degrades the bacterial DNA
  • 18. 

    The uptake of naked DNA by a cell. 

    • Transduction

    • Conjugation

    • Transformation

    Correct Answer
    A. Transformation
  • 19. 

    Griffiths experiment involved bacteria and mice, with what bacteria?

    • Streptococcus pneumoniae

    • Stapholococcus pneumoniae

    • Bacillicoccus pneumoniae

    Correct Answer
    A. Streptococcus pneumoniae
  • 20. 

    Match the word to its definition: Translation

    • Messenger RNA directs the synthesis of a protein

    • DNA makes a mRNA copy of itself during

    • Messenger RNA directs the synthesis of a protein

    Correct Answer
    A. Messenger RNA directs the synthesis of a protein
  • 21. 

    Can bacteria have sexual relations or sexual iife cycles?

    • Yes

    • No

    • Only sexual life cycles

    Correct Answer
    A. No

Quiz Review Timeline (Updated): Jan 25, 2013 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

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  • Jan 25, 2013
    Quiz Edited by
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  • Jun 06, 2011
    Quiz Created by
    Kaiello
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