Discussion
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- Question
Plant viruses may be cultivated in
Options- A. tissue culture
- B. cultures of separated cells
- C. whole plants
- D. all of these
- Correct Answer
- all of these
- 1. The viruses in an attenuated vaccine
Options- A. have no genome
- B. continue to replicate
- C. are usually larger than bacteria
- D. is altered with chemicals Discuss
- 2. Which of the following virus is susceptible to chloroform?
Options- A. Herpes
- B. Influenza
- C. Measles
- D. All of these Discuss
- 3. Which of the following viruses belong/s to family caliciviridae?
Options- A. Hepatitis B virus
- B. Hepatitis D virus
- C. Hepatitis E virus
- D. All of these Discuss
- 4. The lysogenic state is governed by the activity of the regulatory region of the lambda phage genomes; this region is termed as
Options- A. immunity repressor
- B. immunity operon
- C. operon repressor
- D. none of these Discuss
- 5. The first step in infection of a host bacterial cells by a phage is
Options- A. adsorption
- B. absorption
- C. penetration
- D. replication Discuss
- 6. The viral DNA of the temperate phage, instead of taking over the functions of the cell's genes, is incorporated into the host DNA and becomes a prophage in the bacterial chromosome, acting as a gene. This happens in
Options- A. lysogeny
- B. spontaneous induction
- C. lytic phase
- D. none of these Discuss
- 7. Which of the following is semi-continuous (diploid) cell line?
Options- A. HeLa
- B. HEp-2
- C. WI-38
- D. KB Discuss
- 8. The viral DNA is removed from the host's chromosomes and the lytic cycle occurs. The process is called
Options- A. spontaneous induction
- B. inductive infection
- C. resultant induction
- D. spontaneous infection Discuss
- 9. Enveloped viruses have a __________ shape.
Options- A. icosahedral
- B. helical
- C. roughly spherical
- D. complex Discuss
- 10. Which of the following viruses belong to family Flaviviridae?
Options- A. Rubella virus
- B. Yellow fever virus
- C. Hepatitis C virus
- D. All of these Discuss
Viruses problems
Search Results
Correct Answer: continue to replicate
Correct Answer: All of these
Correct Answer: Hepatitis E virus
Correct Answer: immunity operon
Correct Answer: adsorption
Correct Answer: lysogeny
Correct Answer: WI-38
Correct Answer: spontaneous induction
Correct Answer: roughly spherical
Correct Answer: All of these
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