Horizontal Gene Transfer and Recombination in Bacteria
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Questions and Answers

What is the main advantage of plasmids transferring horizontally between bacteria?

  • Slower dissemination of drug resistance
  • Decreased genetic recombination
  • Enhanced genetic diversity (correct)
  • Reduced bacterial population
  • Which type of recombination involves the exchange of genetic material between homologous regions of DNA molecules?

  • Transposition
  • Non-homologous recombination
  • Homologous recombination (correct)
  • Site-specific recombination
  • What is the process by which two DNA molecules exchange genetic information to produce offspring DNA with a novel combination of traits from each parent DNA molecule?

  • Recombination (correct)
  • Transposition
  • Assimilation
  • Integration
  • Which type of recombination involves the exchange of genetic material at specific target sites in the DNA?

    <p>Site-specific recombination</p> Signup and view all the answers

    What is the term used to describe the movement of genetic elements within the genome, leading to rearrangement of genetic information?

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

    Which process is important in DNA repair, genetic recombination during meiosis, and the generation of genetic diversity?

    <p>Homologous recombination</p> Signup and view all the answers

    What type of mutation occurs when the resulting base triplet codes for the same amino acid as the original triplet?

    <p>Silent mutation</p> Signup and view all the answers

    Which gene transfer mechanism involves the direct transfer of genetic material between bacterial cells in physical contact?

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

    What is the process where bacterial DNA is transferred from one cell to another by bacteriophages?

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

    What happens when a recipient cell gains the ability to participate in future conjugation events?

    <p>It becomes F+</p> Signup and view all the answers

    What kind of mutations result in a different amino acid being produced due to a change in the coding sequence?

    <p>Missense mutations</p> Signup and view all the answers

    Which type of DNA transfer process involves the formation of a conjugation bridge between bacterial cells?

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

    What is the key difference between replicative and non-replicative transposition?

    <p>Replicative transposition involves making a copy of the transposon, while non-replicative transposition involves excising the transposon from one location and inserting it into another.</p> Signup and view all the answers

    Which technique in Recombinant DNA Technology is used to make identical copies of DNA fragments or entire organisms?

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

    What is the function of restriction enzymes in Recombinant DNA Technology?

    <p>To cut DNA at specific sites for precise manipulation</p> Signup and view all the answers

    Which step in Recombinant DNA Technology involves introducing the recombinant DNA into a host organism's cells?

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

    What type of recombination involves the exchange of genetic material between DNA molecules that do not have significant sequence similarity?

    <p>Non-homologous recombination</p> Signup and view all the answers

    In recombinant DNA technology, what is the function of vectors (plasmids)?

    <p>To carry foreign genes into host cells</p> Signup and view all the answers

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