Viruses – Section 2


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16. Which of the following oncogenic viruses was first detected?

A. Rous sarcoma virus.
B. Epstein-Barr virus
C. Herpes simplex virus type 2
D. Human T cell leukaemia virus

Correct Answer: A. Rous sarcoma virus
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17. The yield of phage per bacterium is called the

A. eclipse size
B. latent size
C. burst size
D. none of these

Correct Answer: C. burst size
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18. Which of the following viruses are relatively thermostable?

A. Human immunodeficiency virus
B. Rubella virus
C. Hepatitis A virus
D. Influenza virus

Correct Answer: C. Hepatitis A virus
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19. The time from infection until lysis is called as

A. eclipse period
B. rise period
C. latent period
D. burst size

Correct Answer: C. latent period
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20. Virus reproduces in living cells by

A. replication
B. duplication
C. multiplication
D. all of these

Correct Answer: A. replication
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