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Home ‣ Microbiology ‣ Viruses From Animal and Plants See What Others Are Saying!
- Question
The RNA sarcoma viruses, the most strongly transforming viruses may transform which of the following cells in a culture?
Options- A. fibroblasts
- B. myoblasts
- C. iris epithelial
- D. all of these
- Correct Answer
- all of these
- 1. The chief spoilage organisms on smoked fish are
Options- A. molds
- B. bacteria
- C. both (a) and (b)
- D. fungi Discuss
- 2. HIV or Human Immunodeficiency Virus is considered unique because each virus contains:
Options- A. more than 100 copies of the viral genome
- B. a genome made up of both DNA and RNA components
- C. a viral enzyme known as reverse transcriptase
- D. sticky proteins that allow it to bind tightly to host cells Discuss
- 3. The concentration of agar to obtain semi solid media is
Options- A. 1.5-20%
- B. 0.5% or less
- C. >10%
- D. >10%but<20% Discuss
- 4. The butyric acid type of fermentation in acid or medium acid foods, with swelling of the container by the carbon dioxide and hydrogen gas is caused by
Options- A. C. butyricum
- B. C. pasteurianum
- C. both (a) and (b)
- D. C. sporogenes Discuss
- 5. Complete destruction of the microorganisms is commonly known as
Options- A. disinfection
- B. sterilization
- C. antisepsis
- D. none of these Discuss
- 6. Prontosil is
Options- A. an effective antibacterial when used in animals
- B. an effective antibacterial when used in in-vitro cultures
- C. an effective antibacterial both in animals as well as in in-vitro cultures
- D. not used as an antibacterial agent Discuss
- 7. The membranes of which domains are chemically the most similar?
Options- A. Archaea and Bacteria
- B. Bacteria and Eukarya
- C. Eukarya and Archaea
- D. membranes of all three domains are chemically identical Discuss
- 8. Which of the following is the agent associated with the development of neurodegenerative disease in livestock and humans?
Options- A. Prions
- B. Viroids
- C. virions
- D. Virinos Discuss
- 9. The type of recombination that commonly occurs between a pair of homologous DNA sequences is,
Options- A. mutagenic recombination
- B. site-specific recombination
- C. replicative recombination
- D. general recombination Discuss
- 10. The mechanism of passive or facilitated diffusion require
Options- A. metabolic energy
- B. concentration of solute against an electrochemical gradient
- C. accumulation of solute against an electrochemical gradient
- D. accumulation or concentration of solute against an electrochemical gradient Discuss
More questions
Correct Answer: molds
Correct Answer: a viral enzyme known as reverse transcriptase
Correct Answer: 0.5% or less
Correct Answer: both (a) and (b)
Correct Answer: antisepsis
Correct Answer: an effective antibacterial both in animals as well as in in-vitro cultures
Correct Answer: Bacteria and Eukarya
Correct Answer: Prions
Correct Answer: general recombination
Correct Answer: metabolic energy
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