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- Question
The ability of the component cells of callus to form a whole plant is known as
Options- A. redifferentiation
- B. dedifferentiation
- C. either (a) or (b)
- D. none of these
- Correct Answer
- redifferentiation
- 1. Cloning genes in the yeast offer which of following advantage(s)?
Options- A. Over production of proteins of commercial value
- B. Ability to glycosylate proteins during secretion
- C. Ability to clone large piece of DNA
- D. All of the above Discuss
- 2. The term Racking refers to
Options- A. stacking unlabeled wine in bins for aging
- B. adding yeast to initiate fermentation
- C. storing hoses to drain on a slanted board
- D. removing clear liquid from sediment Discuss
- 3. Which of the following event occurs during second phase of growth of P. chrysogenum?
Options- A. Synthesis of penicillin is high
- B. Mycelial mass increases
- C. pH increase
- D. Both (a) and (b) Discuss
- 4. Specialized type of peroxisome and the site of glyoxylate pathway in certain plants is known as
Options- A. gly-peroxisome
- B. lysosome
- C. glyoxysome
- D. none of these Discuss
- 5. Which of the bacteria is considered for biological leaching?
Options- A. T. thiooxidans
- B. T. ferrooxidans
- C. Ferrobacillus terrooxidans
- D. all of these Discuss
- 6. The size of the virulent plasmid of Agrobacterium tumefaciens is
Options- A. 40-80 kb
- B. 80-120 kb
- C. 140-235 kb
- D. >235 kb Discuss
- 7. The yeast generated during the fermentation of beer is generally separated by
Options- A. centrifugation
- B. filtration
- C. cell disruption
- D. all of these Discuss
- 8. What temperature is maintained during anaerobic fermentation of red wine?
Options- A. 20-24 °C
- B. 24-27 °C
- C. 27-31 °C
- D. 31-34 °C Discuss
- 9. To maintain the pH of the culture
Options- A. organic acid such as citric, fumaric, malic and succinic acid is used
- B. synthetic buffers such as Tris, MES or HEPS are used
- C. both (a) and (b)
- D. ammonium salts are used Discuss
- 10. Starch content of potatoes can be increased by using a bacterial gene, known as
Options- A. sucrose phosphate synthase gene
- B. ADP glucose pyrophosphorylase gene
- C. polygalactouranase gene
- D. none of the above Discuss
More questions
Correct Answer: All of the above
Correct Answer: removing clear liquid from sediment
Correct Answer: Both (a) and (b)
Correct Answer: glyoxysome
Correct Answer: all of these
Correct Answer: 140-235 kb
Correct Answer: centrifugation
Correct Answer: 24-27 °C
Correct Answer: both (a) and (b)
Correct Answer: ADP glucose pyrophosphorylase gene
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