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- Question
Which of the following methods would be most appropriate for sterilizing an antibiotic solution?
Options- A. Dry heat sterilization
- B. Microfiltration
- C. Autoclaving
- D. Desiccation
- Correct Answer
- Microfiltration
- 1. The lysogenic state is governed by the activity of the regulatory region of the lambda phage genomes; this region is termed as
Options- A. immunity repressor
- B. immunity operon
- C. operon repressor
- D. none of these Discuss
- 2. The spoilage most commonly occurring in wine is tourne which refers to
Options- A. acid formation from aldehyde and ketones
- B. acid formation from sugars, glucose and fructose
- C. both (a) and (b)
- D. none of the above Discuss
- 3. Which of the following is predominantly proteolytic?
Options- A. C. sporogenes
- B. C. histolyticum
- C. Both (a) and (b)
- D. C. speticum Discuss
- 4. The numbers of nuclear divisions involved in a ciliate undergoing binary fission is
Options- A. greater than conjugation
- B. lesser than conjugation
- C. equal to conjugation
- D. none of these Discuss
- 5. What is the range of minimum set of genes required for life?
Options- A. 50-100 genes
- B. 250-350 genes
- C. 1000-1500 genes
- D. 1500-2000 genes Discuss
- 6. Streptococcus pyogenes can be differentiated from other haemolytic Streptococci on the basis of
Options- A. Bacitracin sensitivity
- B. Erythromycin sensitivity
- C. Aminoglycosides sensitivity
- D. Penicillin sensitivity Discuss
- 7. At what concentration of sulphuric acid, Nocardia resists decolourization?
Options- A. 0.5% sulphuric acid
- B. 5% sulphuric acid
- C. 10% sulphuric acid
- D. 8% sulphuric acid Discuss
- 8. The final step of gene expression is protein synthesis, which is also known as
Options- A. replication
- B. translation
- C. transcription
- D. none of these Discuss
- 9. The organisms responsible for the characteristic musty or earth odor of a freshly plowed field is/are
Options- A. Nocardia
- B. Streptomyces
- C. Micromonospora
- D. all of these Discuss
- 10. What is the direct cause of cell death by diphtheria toxin?
Options- A. Formation of an ion channel in the cell membrane
- B. Inactivation of a translational elongation factor
- C. Induction of apoptosis
- D. None of the above Discuss
More questions
Correct Answer: immunity operon
Correct Answer: acid formation from sugars, glucose and fructose
Correct Answer: Both (a) and (b)
Correct Answer: lesser than conjugation
Correct Answer: 250-350 genes
Correct Answer: Bacitracin sensitivity
Correct Answer: 0.5% sulphuric acid
Correct Answer: translation
Correct Answer: all of these
Correct Answer: Inactivation of a translational elongation factor
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