Bacterial Conjugation
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Questions and Answers

Which of the following is true about F+ and F- in conjugation?

  • F+ is the receiver and becomes F-, while F- is the donor and contains the F factor
  • F+ and F- are both donors and contain the F factor
  • F+ is the donor and contains the F factor, while F- is the receiver and becomes F+ (correct)
  • F+ and F- are both receivers and become F+

    • What is the difference between F' and transduction?

  • F' is a type of transduction that involves the transfer of F and chromosomal DNA
  • F' is a mechanism similar to transduction, but it is not transduction
  • F' is the imprecise excision of an F factor from an Hfr, resulting in the transfer of extra genes (correct)
  • F' is a type of specialized transduction that only involves the transfer of F factor

    • What is hFR in conjugation?

  • hFR is the integration of chromosomal DNA with an F factor
  • hFR is the conjugation of chromosomal DNA with an F factor (correct)
  • hFR is a type of transduction that involves the transfer of Hfr DNA
  • hFR is a type of specialized transduction that only involves the transfer of F factor

    • Which of the following is true about F+ in conjugation?

    <p>F+ is the donor that contains the f factor and production of pilus</p> Signup and view all the answers

    Which of the following is true about F' in conjugation?

    <p>F' is the imprecise excision of an F factor from an Hfr</p> Signup and view all the answers

    What is the difference between hFR and F- in conjugation?

    <p>hFR is the receiver and will become F+, while F- is the donor that contains the f factor and production of pilus</p> Signup and view all the answers

    Which one of these is true about the lytic cycle of bacteriophage replication?

    <p>Viral DNA destroys bacterial DNA</p> Signup and view all the answers

    Which one of these is true about the lysogenic cycle of bacteriophage replication?

    <p>Viral DNA forms a hybrid structure with bacterial DNA called a prophage</p> Signup and view all the answers

    Which one of these is true about generalized transduction?

    <p>Virus packages random bacterial DNA into a protein coat</p> Signup and view all the answers

    Which one of these is true about specialized transduction?

    <p>The subsequent excision is incomplete, so some bacterial genes are brought along</p> Signup and view all the answers

    Which one of these is true about an operon?

    <p>Group of linked genes whose expression is controlled as a single unit</p> Signup and view all the answers

    Which one of these is true about an operator?

    <p>Binding to it by a repressor prevents transcription</p> Signup and view all the answers

    Which one of these is true about a promoter?

    <p>Is where the RNA polymerase binds</p> Signup and view all the answers

    Which one of these is true about a regulatory gene?

    <p>Gene that codes for the repressor protein</p> Signup and view all the answers

    Which one of these is true about a repressible operon?

    <p>Required for a biosynthetic pathway, normally on, needs to be turned off if enough accumulates in the cell</p> Signup and view all the answers

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