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- Question
The population of algae in soil is __________ that of either bacteria or fungi.
Options- A. generally smaller than
- B. generally greater than
- C. equal to
- D. none of these
- Correct Answer
- generally smaller than
- 1. Which of the following antigenic types of hepatitis B virus is present in the envelope?
Options- A. HbsAg
- B. HBcAg
- C. HBeAg
- D. HBxAg Discuss
- 2. The catabolic reaction, pentose-phosphate exists in
Options- A. prokaryotic cells
- B. eukaryotic cells
- C. prokaryotic and eukaryotic cells both
- D. none of these Discuss
- 3. Gram positive cells have a
Options- A. second outer membrane that helps to retain the crystal violet stain
- B. multiple layer of peptidoglycan that helps to retain the crystal violet stain
- C. thick capsule that traps the crystal violet stain
- D. periplasmic space that traps the crystal violet Discuss
- 4. Xylose lysine deoxycholate (XLD) agar is better selective medium than the deoxycholate citrate agar (DCA) because
Options- A. it is selective
- B. it imparts better growth
- C. it contains high salt concentration
- D. it is less inhibitory to S. Dysentriae and S. flexneri Discuss
- 5. In E.coli, which enzyme synthesizes the RNA primer for Okazaki fragments?
Options- A. DnaA
- B. DnaC
- C. DnaG
- D. all of these Discuss
- 6. Heat-stable enterotoxin of Escherichia coli activates
Options- A. adenylate cyclase
- B. guanylate cyclase
- C. both of the above
- D. none of these Discuss
- 7. Heat-labile enterotoxin of Escherichia coli activates
Options- A. guanylate cyclase
- B. adenylate cyclase
- C. both (a) and (b)
- D. none of these Discuss
- 8. The ability of B. coagulans to grow in tomato juice depends upon the
Options- A. number of spores present
- B. the availability of oxygen
- C. the pH of the juice
- D. all of these Discuss
- 9. Who developed the concept of specific toxicity?
Options- A. Pasteur
- B. Fleming
- C. Watson
- D. Ehrlich Discuss
- 10. The structural abnormality of cells is termed as
Options- A. hyperplasia
- B. anaplasia
- C. metastasis
- D. all of these Discuss
More questions
Correct Answer: HbsAg
Correct Answer: prokaryotic and eukaryotic cells both
Correct Answer: multiple layer of peptidoglycan that helps to retain the crystal violet stain
Correct Answer: it is less inhibitory to S. Dysentriae and S. flexneri
Correct Answer: DnaG
Correct Answer: guanylate cyclase
Correct Answer: adenylate cyclase
Correct Answer: all of these
Correct Answer: Ehrlich
Correct Answer: anaplasia
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