Pharm D Lecture 6: Regulation of Gene Expression
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Questions and Answers

What type of plasmid is required for the production of sex pili and donation of DNA during conjugation?

  • Col-plasmid
  • R-plasmid
  • Degrative plasmid
  • F-plasmid (correct)

    • Which type of plasmid contains genes that code for proteins that can kill other bacteria?

  • Col-plasmid (correct)
  • R-plasmid
  • F-plasmid
  • Virulence plasmid

    • What is the term for a cell that contains the F-plasmid?

  • Hfr
  • F-
  • R+
  • F+ (correct)

    • What is the result of the integration of the F-plasmid into the chromosome?

    <p>Formation of an Hfr cell</p> Signup and view all the answers

    What is the function of R-plasmids?

    <p>To confer antibiotic resistance</p> Signup and view all the answers

    How many genes are approximately present on an F-plasmid?

    <p>25</p> Signup and view all the answers

    What is the direction of genetic material transfer in conjugation?

    <p>From donor to recipient</p> Signup and view all the answers

    What type of plasmid enables the digestion of unusual substances?

    <p>Degrative plasmid</p> Signup and view all the answers

    What happens when the F-plasmid is integrated into the chromosome?

    <p>The cell becomes Hfr</p> Signup and view all the answers

    Which type of plasmid turns the bacterium into a pathogen?

    <p>Virulence plasmid</p> Signup and view all the answers

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