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- Question
Protoplasts can be produced from suspension cultures, callus tissues or intact tissues by enzymatic treatment with
Options- A. cellulotyic enzymes
- B. pectolytic enzymes
- C. both cellulotyic and pectolytic enzymes
- D. proteolytic enzymes
- Correct Answer
- both cellulotyic and pectolytic enzymes
- 1. Which of the following is used for agitation in a fermentor?
Options- A. Impeller
- B. Baffles
- C. Sparger
- D. All of these Discuss
- 2. In India first genetically engineered vaccine against HBV was developed by
Options- A. Ranbaxy Pvt Ltd
- B. Shantha Biotechnics Pvt Ltd
- C. Dabur Pvt Ltd
- D. Glaxo Pvt Ltd Discuss
- 3. Antisense technology
Options- A. selectively blocks expression of a gene
- B. combines genetic material from different species
- C. combines organelles and cells
- D. alters or transfers cells Discuss
- 4. Select the wrong statement about plasmids?
Options- A. It is extrachromosomal
- B. It is double stranded
- C. Its replication depends upon host cell
- D. It is closed and circular DNA Discuss
- 5. Which is the most common carbon source used in the plant cell culture media?
Options- A. Sucrose
- B. Glucose
- C. Fructose
- D. Maltose Discuss
- 6. A group of about 300 chlorophyll molecule acting together to trap photons and transfer energy to the pigment molecule at the reaction center may be called as
Options- A. harvesting unit
- B. reaction center
- C. photosynthetic unit
- D. chloromass Discuss
- 7. The controversy regarding the use of Bt corn is that it
Options- A. is potentially harmful to monarch butterflies
- B. is a potential allergen to humans
- C. both (a) and (b)
- D. can contaminate groundwater Discuss
- 8. Recombinant vaccine for HBV was produced by cloning viral genes in
Options- A. plasmids
- B. cosmids
- C. autonomously replicating plasmid of yeast
- D. phagemids Discuss
- 9. Which method of plant propagation involves the use of girdling?
Options- A. Grafting
- B. Cuttings
- C. Layering
- D. Micropropagation Discuss
- 10. Which of the following gene detoxifies herbicide phosphinothricin?
Options- A. Nitrilase
- B. Glutathione S-transferase (GST)
- C. Phosphinothricin acetyl transferase
- D. All of these Discuss
More questions
Correct Answer: Impeller
Correct Answer: Shantha Biotechnics Pvt Ltd
Correct Answer: selectively blocks expression of a gene
Correct Answer: Its replication depends upon host cell
Correct Answer: Sucrose
Correct Answer: photosynthetic unit
Correct Answer: both (a) and (b)
Correct Answer: autonomously replicating plasmid of yeast
Correct Answer: Layering
Correct Answer: Phosphinothricin acetyl transferase
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