Transgenic Plant problems
- 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
Correct Answer: ADP glucose pyrophosphorylase gene
- 2. 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 Discuss
Correct Answer: All of the above
- 3. 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
Correct Answer: all of the above
- 4. 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
Correct Answer: selectively blocks expression of a gene
- 5. 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
Correct Answer: gene for EPSPS(5-enol-pyruvyl shikimat 3 phosphate synthase)
- 6. 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
Correct Answer: Protoplast fusion
- 7. 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
Correct Answer: All of these
- 8. The first transgenic plants expressing engineered foreign genes were tobacco plants produced by the use of
Options- A. Agrobacterium tumefaciens
- B. Bacillus thuringiensis
- C. Arabidopsis thaliana
- D. Streptomyces hygroscopicus Discuss
Correct Answer: Agrobacterium tumefaciens
- 9. In a __________ protocol, bacteria with engineered abilities to detoxify pollutants are intentionally released in an area.
Options- A. microcosm establishment
- B. mibridization
- C. bioremediation
- D. rhizosecretion Discuss
Correct Answer: bioremediation
- 10. Which tropical fruit crop has been successfully engineered to be protected against a lethal virus?
Options- A. Passion fruit
- B. Papaya
- C. Mango
- D. Lychee Discuss
Correct Answer: Papaya
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