Discussion
Home ‣ Microbiology ‣ Viruses Comments
- Question
Viruses can be purified based on their size and density by using
Options- A. gradient centrifugation
- B. differential centrifugation
- C. precipitation
- D. none of these
- Correct Answer
- gradient centrifugation
- 1. Botulism is caused by the presence of toxin developed by
Options- A. Clostridium tyrobutyricum
- B. Clostridium sporogenes
- C. Clostridium botulinum
- D. none of these Discuss
- 2. Arrange the potencies of toxin in descending order of the following canned foods
Options- A. peas>string beans>spinach> corn
- B. corn> string bean>peas>spinach
- C. corn> spinach> peas>string beans
- D. corn> peas>string beans>spinach Discuss
- 3. A bacterial food intoxication refers to
Options- A. illness caused by presence of pathogens
- B. food borne illness caused by the presence of a bacterial toxin formed in food
- C. both (a) and (b)
- D. none of the above Discuss
- 4. The method of successful treatment of botulism prior to appearance of botulism symptoms involve administration of
Options- A. antibiotic
- B. analgesic
- C. antitoxin
- D. antipyretic Discuss
- 5. The application of Gamma rays destroys botulism toxin. The dose of gamma rays required for this purpose is
Options- A. 73 Gy
- B. 73 Rad
- C. 7.3 Mrad
- D. 173 Rad Discuss
- 6. The yield of phage per bacterium is called the
Options- A. eclipse size
- B. latent size
- C. burst size
- D. none of these Discuss
- 7. Inclusion bodies of measles virus are
Options- A. intracytoplasmic
- B. intranuclear
- C. both (a) and (b)
- D. none of these Discuss
- 8. The extracellular phage number increases until a constant titer at the end of the multiplication cycle. This time interval is termed as
Options- A. eclipse period
- B. rise period
- C. latent period
- D. burst size Discuss
- 9. 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
- 10. Which of the following is not true of virions?
Options- A. Reproduce independently
- B. Contain DNA
- C. Contain RNA
- D. Are extracellular Discuss
Viruses problems
Search Results
Correct Answer: Clostridium botulinum
Correct Answer: corn> peas>string beans>spinach
Correct Answer: food borne illness caused by the presence of a bacterial toxin formed in food
Correct Answer: antitoxin
Correct Answer: 7.3 Mrad
Correct Answer: burst size
Correct Answer: both (a) and (b)
Correct Answer: rise period
Correct Answer: Rous sarcoma virus.
Correct Answer: Reproduce independently
Comments
There are no comments.More in Microbiology:
Programming
Copyright ©CuriousTab. All rights reserved.