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- Question
Which of the following bacteria is moderately saccharolytic?
Options- A. Bacteriodes fragilis
- B. B gingivalis
- C. B melaninogenicus
- D. B levii
- Correct Answer
- B melaninogenicus
- 1. The correct term for the transfer of genetic material between bacteria in direct physical contact is
Options- A. conjugation
- B. transformation
- C. replication
- D. transduction Discuss
- 2. Which of the following term describes the relationship between a virus and host where no new viral particles are produced and the viral genome is replicated along with host chromosome?
Options- A. Lysogeny
- B. Lysis
- C. Transformation
- D. Conjugation Discuss
- 3. Which of the following transport bacterial DNA to other bacteria via bacteriophages?
Options- A. Conjugation
- B. Transduction
- C. Transformation
- D. Translation Discuss
- 4. The toxin of Staphylococcus aureus that may result into scalded skin syndrome is
Options- A. Enterotoxin
- B. Leucocidin
- C. Epidermolytic toxin
- D. Haemolysin Discuss
- 5. Verotoxin 1 of Escherichia coli is similar to
Options- A. cholera toxin
- B. shiga toxin
- C. heat-stable enterotoxin of E. coli
- D. heat-labile enterotoxin of E. coli Discuss
- 6. Most of the energy in aerobic respiration of glucose is captured by
Options- A. substrate-level phosphorylation
- B. electron transport of electrons from NADH
- C. long-chain fatty acid oxidation
- D. the enzyme formic-hydrogen lyase Discuss
- 7. Which binding is inhibited by pactamycin?
Options- A. Aminoacyl-tRNA to the A-site of 30S subunit
- B. Initiator-tRNA to 30S/40S initiation complexes
- C. Peptidyl t-RNA to the 50S subunit
- D. Formation of peptide bond in P site Discuss
- 8. Lactobacilli grow best under
Options- A. strict anaerobic conditions
- B. microaerophilic conditions in presence of 5% CO2 and PH6
- C. microaerophilic conditions in presence of 3% CO2 and PH5
- D. microaerophilic conditions in presence of 2% CO2 and PH4 Discuss
- 9. Lysozyme is present in
Options- A. sweat
- B. Cerebro spinal fluid (CSF)
- C. urine
- D. saliva Discuss
- 10. How many oxygen molecules are required in the fermentation of one molecule of glucose to ethanol and CO2?
Options- A. 0
- B. 1
- C. 2
- D. 36 Discuss
More questions
Correct Answer: conjugation
Correct Answer: Lysogeny
Correct Answer: Transduction
Correct Answer: Epidermolytic toxin
Correct Answer: shiga toxin
Correct Answer: electron transport of electrons from NADH
Correct Answer: Initiator-tRNA to 30S/40S initiation complexes
Correct Answer: microaerophilic conditions in presence of 5% CO2 and PH6
Correct Answer: saliva
Correct Answer: 0
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