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Home Microbiology Microbial Recombination and Gene Transfer Comments

  • Question
  • What is term used for a bacterial cell that is able to take up naked DNA?


  • Options
  • A. Complementary
  • B. Liable
  • C. Competent
  • D. Infected

  • Correct Answer
  • Competent 


  • Microbial Recombination and Gene Transfer problems


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    • 1. Which of the following term describes the relationship between a virus and host where no new viral particles are produced and the viral genome is replicated along with host chromosome?

    • Options
    • A. Lysogeny
    • B. Lysis
    • C. Transformation
    • D. Conjugation
    • Discuss
    • 2. The main difference between a self-transmissible and a mobilizable plasmid is that the self-transmissible plasmid

    • Options
    • A. transfers both strands of the plasmid DNA
    • B. carries genes encoding the mating apparatus
    • C. transfers antibiotic resistance genes
    • D. usually has a transposon inserted into it
    • Discuss
    • 3. Which of the following plamids do not possess information for self transfer to another cell?

    • Options
    • A. Cryptic plasmids
    • B. Conjugative plasmids
    • C. Non-conjugative plasmids
    • D. None of these
    • Discuss
    • 4. The correct term for the transfer of genetic material between bacteria in direct physical contact is

    • Options
    • A. conjugation
    • B. transformation
    • C. replication
    • D. transduction
    • Discuss
    • 5. Which of the following is the cause for drug resistance in tuberculosis?

    • Options
    • A. Mutation
    • B. Transduction
    • C. Transformation
    • D. Conjugation
    • Discuss
    • 6. The chromosomal genes, possessing fertility factor is known as

    • Options
    • A. R factor
    • B. F prime factor
    • C. HFr
    • D. F factor
    • Discuss
    • 7. In lysogeny,

    • Options
    • A. a bacteriophage transfers bacterial DNA
    • B. bacteria take up double stranded DNA from the environment
    • C. DNA-degrading enzymes in the extracellular medium would stop the process
    • D. a bacteriophage genome is integrated into the bacterial genome
    • Discuss
    • 8. Which of the following transport bacterial DNA to other bacteria via bacteriophages?

    • Options
    • A. Conjugation
    • B. Transduction
    • C. Transformation
    • D. Translation
    • Discuss
    • 9. What information can be generated by interrupted mating experiments?

    • Options
    • A. Levels of DNA homology
    • B. Bacterial genome maps
    • C. DNA nucleotide sequences
    • D. Proteomics of the bacteria
    • Discuss
    • 10. Natural killer cells are involved in

    • Options
    • A. tumour rejection
    • B. allograft rejection
    • C. non-specific killing of virus transformed target cells
    • D. all of these
    • Discuss


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