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- Question
The tissue structure deteriorates as the virus multiplies. This deterioration is called
Options- A. aneuploidy
- B. protopathic effect
- C. cytopathic effect
- D. none of these
- Correct Answer
- cytopathic effect
- 1. Transfer of infection from cell to cell occurs mainly by direct transfer of virions via
Options- A. plasmodesmata
- B. cytodesmata
- C. protodesmata
- D. none of these Discuss
- 2. Which of the following virus is transmitted by the respiratory route?
Options- A. Rhinovirus
- B. Coronavirus
- C. Measles virus
- D. All of these Discuss
- 3. Supercoiling refers to the extra turns in the structure of ds DNA due to the action of
Options- A. DNA gyrase
- B. DNA pyrase
- C. RNA gyrase
- D. RNA pyrase Discuss
- 4. Which of the following virus is transmitted by genital route?
Options- A. Papillomaviruses
- B. Herpes simplex virus type 2
- C. Hepatitis B virus
- D. All of these Discuss
- 5. Negative strand ssRNA viruses need to have a preformed replicase when they invade a mammalian cell because they
Options- A. use it to terminate transcripts when they copy host cell mRNA
- B. have to make a positive strand copy that can be translated
- C. use it to modify host enzymes that are recruited for viral replication
- D. none of the above Discuss
- 6. What does the positive strand in double stranded RNA viruses stands for?
Options- A. rRNA
- B. tRNA
- C. mRNA
- D. None of these Discuss
- 7. The reovirus and influenza virus contain
Options- A. 10 different segments of dsRNA and 8 different segments of ssRNA respectively
- B. 8 different segments of dsRNA and 10 different segments of ssRNA respectively
- C. 5 different segments of dsRNA and 7 different segments of ssRNA respectively
- D. 7 different segments of dsRNA and 5different segments of ssRNA respectively Discuss
- 8. The structural abnormality of cells is termed as
Options- A. hyperplasia
- B. anaplasia
- C. metastasis
- D. all of these Discuss
- 9. Which type of interferon is produced by virus-infected cells?
Options- A. ?
- B. ?
- C. Both (a) and (b)
- D. None of these Discuss
- 10. What is the function of positive strand in double stranded RNA viruses?
Options- A. Synthesis of protein
- B. Production of ribosomes
- C. Both (a) and (b)
- D. None of these Discuss
Viruses From Animal and Plants problems
Search Results
Correct Answer: plasmodesmata
Correct Answer: All of these
Correct Answer: DNA gyrase
Correct Answer: All of these
Correct Answer: have to make a positive strand copy that can be translated
Correct Answer: mRNA
Correct Answer: 10 different segments of dsRNA and 8 different segments of ssRNA respectively
Correct Answer: anaplasia
Correct Answer: Both (a) and (b)
Correct Answer: Synthesis of protein
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