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- Question
What are the various disadvantages of cross protection?
Options- A. Possibility of mutations in inducing mild virus strain
- B. Possibility of synergism between inducing virus and other unrelated virus
- C. Possibility of unnecessary spread of mild virus
- D. All of the above
- Correct Answer
- All of the above
- 1. 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
- 2. 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
- 3. Which of the following growth regulator is used to stimulate embryo or shoot development?
Options- A. Auxins
- B. Cytokinins
- C. Gibberellins
- D. Brassinosteroids Discuss
- 4. Which of the following is not true about nurse or conditioned medium?
Options- A. It is liquid removed from the suspension of fast growing cells
- B. It contains uncharacterized growth factor released by growing cells
- C. It is used in the culture of regenerating protoplast
- D. it is removed aseptically from the culture and is autoclaved before use Discuss
- 5. Concentration of sucrose generally used in plant cell culture media is
Options- A. 10-15 g/l
- B. 20-30 g/l
- C. 40-50 g/l
- D. 60-70 g/l Discuss
- 6. 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
- 7. 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
- 8. Resistance to glyphosphate in transgenic petunia plants has been developed by the transfer of
Options- A. gene for EPSPS(5-enol-pyruvyl shikimat 3 phosphate synthase)
- B. gene for ALS (acetolactate synthase)
- C. gene for GS (glutamine synthase)
- D. any of the above Discuss
- 9. Which cell-based plant technology involves the combining of two cells without cell walls from different species?
Options- A. Clonal propagation
- B. Cybridization
- C. Protoplast fusion
- D. Mutant selection Discuss
- 10. Which of the following genes can be used for making resistances against viral infection?
Options- A. Genes for capsid protein
- B. Gene for nucleocapsid protein
- C. Satellite RNA
- D. All of these Discuss
Transgenic Plant problems
Search Results
Correct Answer: ADP glucose pyrophosphorylase gene
Correct Answer: both (a) and (b)
Correct Answer: Gibberellins
Correct Answer: it is removed aseptically from the culture and is autoclaved before use
Correct Answer: 20-30 g/l
Correct Answer: all of the above
Correct Answer: selectively blocks expression of a gene
Correct Answer: gene for EPSPS(5-enol-pyruvyl shikimat 3 phosphate synthase)
Correct Answer: Protoplast fusion
Correct Answer: All of these
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