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  • Question
  • The temperate phage that have no site specificity for insertion and may even be able to insert multiple copies of their DNA into a single bacterial chromosome is


  • Options
  • A. ? phage enzyme
  • B. ? DNA
  • C. Phage Mu
  • D. Phage Mn

  • Correct Answer
  • Phage Mu 


  • Viruses problems


    Search Results


    • 1. The capsomeres consist of a number of proteins subunits or molecules called

    • Options
    • A. protomers
    • B. caproprotein
    • C. procapsid
    • D. none of these
    • Discuss
    • 2. Which of the following viruses show/s transformation of infected cells?

    • Options
    • A. Hepatitis B virus
    • B. Human T cell lymphotronic virus type I
    • C. Epstein-Barr virus
    • D. All of these
    • Discuss
    • 3. Group E phages have

    • Options
    • A. single stranded DNA
    • B. double stranded DNA
    • C. single stranded RNA
    • D. double stranded DNA
    • Discuss
    • 4. Viruses largely lack metabolic machinery of their own to generate energy or to synthesize

    • Options
    • A. protein
    • B. carbohydrate
    • C. alcohol
    • D. all of these
    • Discuss
    • 5. The repressor protein, since the cell is resistant to lysis from externally infecting phage, is also called

    • Options
    • A. immunity repressor
    • B. immunity operon
    • C. operon repressor
    • D. none of these
    • Discuss
    • 6. Which of the following viruses has not been associated with human cancer?

    • Options
    • A. Hepatitis C virus
    • B. Hepatitis B virus
    • C. Varicella-Zoster virus
    • D. Herpes simplex virus type 2
    • Discuss
    • 7. The envelope of which of the following viruses is derived from the host cell nucleus?

    • Options
    • A. Paramyxoviruses
    • B. Retroviruses
    • C. Orthomyxoviruses
    • D. Herpesviruses
    • Discuss
    • 8. Edward Jenner began inoculating humans with material from __________ lesions.

    • Options
    • A. Smallpox
    • B. Avianpox
    • C. Cowpox
    • D. Chickenpox
    • Discuss
    • 9. Which of the following may affect proteins and nucleic acids, but not viruses?

    • Options
    • A. Denaturation
    • B. Enzyme treatment
    • C. Pressure
    • D. All of these
    • Discuss
    • 10. The bacterial viruses having head made up of large capsomeres, but no tail is morphologically classified as

    • Options
    • A. A
    • B. B
    • C. C
    • D. D
    • Discuss


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