Discussion
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- Question
Area of lysis on a bacterial lawn culture produced by a phage is known as
Options- A. pock
- B. plaque
- C. pox
- D. all of these
- Correct Answer
- plaque
- 1. T-even phage binding to E. coli probably involves
Options- A. electrostatic interaction
- B. hydrophobic interaction
- C. covalent bonds
- D. all of these Discuss
- 2. A bacterial defense mechanism against bacteriophage is called
Options- A. concatamerization
- B. polymerization
- C. restriction
- D. lysogeny Discuss
- 3. The process by which phage reproduction is initiated in lysogenized culture is called
Options- A. infection
- B. integration
- C. repression
- D. induction Discuss
- 4. Which of the following bacteria can be typed by phage typing method?
Options- A. Staphylococcus aureus
- B. Salmonella typhi
- C. Vibrio cholerae
- D. All of these Discuss
- 5. One of the first enzymes synthesized by many bacteriophage is __________ , an RNA-dependent RNA polymerase.
Options- A. RNA transcriptase
- B. RNA polymerase
- C. RNA ligase
- D. RNA replicase Discuss
- 6. __________ protein keeps the prophage dormant and prevents virus reproduction.
Options- A. Operator
- B. Promotor
- C. Repressor
- D. Enhancer Discuss
- 7. In viruses with envelopes
Options- A. the envelope and the embedded proteins are encoded by the viral nucleic acid
- B. the envelope is derived from the host but it contains embedded proteins coded by the viral nucleic acid
- C. the envelope is coded by the viral nucleic acids, but the proteins come from the host's membrane proteins
- D. the envelope and its imbedded proteins are derived from the host's membranes Discuss
- 8. West Nile virus can cause a disease in human beings that may be transmitted from an infected bird to a person by a mosquito. This is an example of
Options- A. endogenous infection
- B. fomite borne disease
- C. arthropod borne disease
- D. nosocomial infection Discuss
- 9. Intracytoplasmic inclusion bodies are found in cells infected with
Options- A. Rabies virus
- B. Vaccinia virus
- C. Fowlpox virus
- D. all of these Discuss
- 10. The predominant lipid substance found in the viral envelope is
Options- A. phospholipids
- B. glycolipids
- C. neutral fat
- D. all of these Discuss
Bacteriophages problems
Search Results
Correct Answer: electrostatic interaction
Correct Answer: restriction
Correct Answer: induction
Correct Answer: All of these
Correct Answer: RNA replicase
Correct Answer: Repressor
Correct Answer: the envelope is derived from the host but it contains embedded proteins coded by the viral nucleic acid
Correct Answer: arthropod borne disease
Correct Answer: all of these
Correct Answer: phospholipids
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