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- Question
In liquid surface culture process for the fermentation to produce citric acid,
Options- A. A. niger is used with solid substrate as sweet potato
- B. A. niger floats on the surface of solution
- C. Fungal mycelium grows through out the solution in a deep tank
- D. both (a) and (b)
- Correct Answer
- A. niger floats on the surface of solution
- 1. Neurospora is used as an experimental tool in
Options- A. ecology
- B. cytology
- C. genetics
- D. physiology Discuss
- 2. The crystal-like material sometimes found in wine bottles is
Options- A. residual diatomaceous earth
- B. tannin
- C. prevented by cold stabilizing
- D. caused by excessive malic acid Discuss
- 3. If the RBC of human were kept in 0.9% NaCl solution, what sort of change will occur to RBC?
Options- A. Cell will Burst
- B. Cell will shrink
- C. No change to RBC
- D. RBC will destroy Discuss
- 4. Which type of restriction endonuclease cuts the DNA within the recognition site?
Options- A. Type I
- B. Type II
- C. Type III
- D. All of the these Discuss
- 5. Which of the following organism is not used in any of the traditional industrial fermentation?
Options- A. E. coli
- B. Yeast
- C. Bacillus
- D. Pseudomonas Discuss
- 6. α-aminoadipate inhibits the growth if one of the following marker is present in the yeast. That is
Options- A. His 3
- B. Lys 2
- C. Ura 3
- D. Trp 1 Discuss
- 7. The organism used for the preparation of sonti is
Options- A. Rhizopus sonti
- B. Aspergillus oryzae
- C. Lactobacillus vermiformis
- D. Saccharomyces pyriformis Discuss
- 8. Biochips are made up of
Options- A. semi-conducting molecules inserted into the protein frame work
- B. conducting molecules inserted into the protein frame work
- C. non-conducting molecules inserted into the protein frame work
- D. any of the above Discuss
- 9. Single stranded circular RNA encapsidated with a larger RNA in a plant virus is
Options- A. a virion
- B. a viroid
- C. a virusoid
- D. none of these Discuss
- 10. Which of the following nitrogen sources is added in the fermentation medium of citric acid production?
Options- A. Ammonium salt
- B. Urea
- C. Both (a) and (b)
- D. Peptone Discuss
More questions
Correct Answer: genetics
Correct Answer: prevented by cold stabilizing
Correct Answer: No change to RBC
Correct Answer: Type II
Correct Answer: E. coli
Correct Answer: Lys 2
Correct Answer: Rhizopus sonti
Correct Answer: semi-conducting molecules inserted into the protein frame work
Correct Answer: a virusoid
Correct Answer: Both (a) and (b)
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