Discussion
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- Question
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
- Correct Answer
- prevented by cold stabilizing
- 1. A plasmid used to introduce BT toxin into a plant cell
Options- A. carries an antibiotic resistance gene that makes the plant resistant to antibiotics
- B. causes the plant to produce opines
- C. is toxic for the plant cell
- D. carries a bacterial gene with a plant promoter Discuss
- 2. Tomatoes exhibiting delayed ripening express antisense RNA against
Options- A. glycerol 1 phosphate acyl transferase
- B. polygalactouranase
- C. ACC deaminase
- D. sucrose phosphate synthase gene Discuss
- 3. The cellular organelle associated with secretion is the
Options- A. golgi complex
- B. mitochondrion
- C. ribosome
- D. lysosome Discuss
- 4. Which of the following is used to check vortex and to improve aeration efficiency in a fermentor?
Options- A. Impeller
- B. Baffles
- C. Sparger
- D. All of these Discuss
- 5. Accumulation of lactate leads to
Options- A. increase in pH
- B. no change in pH
- C. reduction in the pH of culture hence loss of cell viability
- D. no loss of cell viability Discuss
- 6. Cider vinegar is produced from
Options- A. fruit juices
- B. malted grain
- C. ethanol
- D. ale Discuss
- 7. How many chromatids are there in a duplicated chromosome?
Options- A. One
- B. Two
- C. Three
- D. Four Discuss
- 8. Which of the following would not be found in a prokaryotic cell?
Options- A. organelles
- B. DNA
- C. nucleoid
- D. nucleus Discuss
- 9. Range of optimum glucose concentration present in the culture media is
Options- A. 5.5 - 55 mmol/litre
- B. 55 - 75 mmol/litre
- C. 75-105 mmol/litre
- D. 105-150 mmol/litre Discuss
- 10. After the fermentation is over, ethanol is recovered by
Options- A. centrifugation
- B. distillation
- C. filtration
- D. cell disintegration Discuss
More questions
Correct Answer: carries a bacterial gene with a plant promoter
Correct Answer: ACC deaminase
Correct Answer: golgi complex
Correct Answer: Baffles
Correct Answer: reduction in the pH of culture hence loss of cell viability
Correct Answer: fruit juices
Correct Answer: Two
Correct Answer: nucleus
Correct Answer: 5.5 - 55 mmol/litre
Correct Answer: distillation
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