Viruses problems
- 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
Correct Answer: protomers
- 2. 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 Discuss
Correct Answer: Phage Mu
- 3. 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
Correct Answer: Varicella-Zoster virus
- 4. 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
Correct Answer: Herpesviruses
- 5. Edward Jenner began inoculating humans with material from __________ lesions.
Options- A. Smallpox
- B. Avianpox
- C. Cowpox
- D. Chickenpox Discuss
Correct Answer: Cowpox
- 6. 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
Correct Answer: All of these
- 7. 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 Also asked in: GATE, CAT, Bank Exams, AIEEE, Bank PO, Bank Clerk
Correct Answer: D
- 8. In cell culture, measles virus may lead to
Options- A. nuclear pyknosis
- B. transformation of cells
- C. syncytium formation
- D. rounding and aggregation of cells Discuss
Correct Answer: syncytium formation
- 9. Which of the following disinfectant is effective against viruses?
Options- A. Hydrogen peroxide
- B. Hypochlorite
- C. Formaldehyde
- D. All of these Discuss
Correct Answer: All of these
- 10. The viral nucleocapsid is the combination of
Options- A. genome and capsid
- B. capsid and spikes
- C. envelope and capsid
- D. capsomere and genome Discuss
Correct Answer: genome and capsid
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