Which one is not useful in the treatment of viruses except acyclovir interferon

3. Which of the following is an example of rod-shaped viruses having their capsomeres arranged helically and not in the stacked ring?
Options
A. Bateriophage M13
B. Bateriophage MV-L2
C. Bateriophage T2
D. Bateriophage T4

Discuss

Correct Answer: Bateriophage M13

4. Which of the following is not true of virions?
Options
A. Reproduce independently
B. Contain DNA
C. Contain RNA
D. Are extracellular

Discuss

Correct Answer: Reproduce independently

5. Which of the following oncogenic viruses was first detected?
Options
A. Rous sarcoma virus.
B. Epstein-Barr virus
C. Herpes simplex virus type 2
D. Human T cell leukaemia virus

Discuss

Correct Answer: Rous sarcoma virus.

6. The time from infection until lysis is called as
Options
A. eclipse period
B. rise period
C. latent period
D. burst size

Discuss

Correct Answer: latent period

7. Which of the following are obligate intracellular parasites?
Options
A. Chlamydia
B. Viruses
C. Rickettsia
D. All of these

Discuss

Correct Answer: All of these

8. Virus reproduces in living cells by
Options
A. replication
B. duplication
C. multiplication
D. all of these

Discuss

Correct Answer: replication

9. Which of the following statements is correct?
Options
A. Up to 10% of human tumours have a viral risk factor
B. Up to 40% of human tumours have a viral risk factor
C. Up to 30% of human tumours have a viral risk factor
D. Up to 20% of human tumours have a viral risk factor

Discuss

Correct Answer: Up to 20% of human tumours have a viral risk factor

10. What kind of embryo is often used for viral assays?
Options
A. Mouse
B. Rat
C. Cat
D. Chicken

Discuss

Correct Answer: Chicken

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