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- Question
Which of the following has been widely used to provide resistance against plant viruses?
Options- A. Virus resistance genes from bacteria
- B. Expression of virus coat protein genes in transgenic plants
- C. Expression of anti-virus genes in vectors that transmit viruses
- D. Expression of ribonuclease (RNase) genes in host plants
- Correct Answer
- Expression of virus coat protein genes in transgenic plants
- 1. Cellular totipotency is the property of
Options- A. plants
- B. animals
- C. bacteria
- D. all of these Discuss
- 2. At low glucose concentration, below 0.25 mmol/litre, large portions of glucose and glutamine is shunted via
Options- A. oxidative pathway
- B. anaerobic pathway
- C. both (a) and (b)
- D. none of these Discuss
- 3. Which substrate is used in the fermentation of citric acid?
Options- A. Beet molasses
- B. Sucrose
- C. Starch hydrolysate
- D. All of these Discuss
- 4. During the growth of animal cells in culture, it is noticed that the cells do not look very healthy. After an investigation, this is found that there is a lot of lactic acid in the culture fluid. What is probably wrong with this culture?
Options- A. Ethyl alcohol is being produced in excess
- B. The cells have too much oxygen
- C. Glycolysis is being inhibited
- D. The cells do not have enough oxygen Discuss
- 5. Insect resistance in the transgenic plant has been achieved by
Options- A. transferring genes for Bt toxins
- B. transferring genes for protease inhibitors
- C. transferring genes for other insecticidal secondary metabolities
- D. all of the above Discuss
- 6. Charon 34 and Charon 35 can clone DNA upto
Options- A. 1-2 kb
- B. 6-7 kb
- C. 9-20 kb
- D. 30-35 kb Discuss
- 7. Chlorotetracyclin is soluble in
Options- A. organic solvents
- B. water
- C. ether
- D. all of these Discuss
- 8. The Ig locus is about
Options- A. 2/3rd of all hybridomas
- B. l/3rd of all hybridomas
- C. l/2nd of all hybridomas
- D. 1/4th of all hybridomas Discuss
- 9. Some cross reactions with monoclonal antibodies (MAbs) can occur. Unexpected cross reactions occur more frequently with
Options- A. Ig MAbs
- B. IgG
- C. IgA
- D. IgE Discuss
- 10. T cells are the source of
Options- A. interleukin
- B. interferon
- C. lymphotoxin
- D. all of these Discuss
More questions
Correct Answer: plants
Correct Answer: oxidative pathway
Correct Answer: All of these
Correct Answer: The cells do not have enough oxygen
Correct Answer: all of the above
Correct Answer: 9-20 kb
Correct Answer: water
Correct Answer: 2/3rd of all hybridomas
Correct Answer: Ig MAbs
Correct Answer: all of these
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