Transgenic Plant problems
- 1. The roots of a plant are converted into drug-producing structures in a process called
Options- A. microcosm establishment
- B. mibridization
- C. bioremediation
- D. rhizosecretion Discuss
Correct Answer: rhizosecretion
- 2. Which of the following is not a characteristic of a transgenic crop?
Options- A. herbicide resistance
- B. Bt insect resistance toxin
- C. increased methionine content
- D. none of these Discuss
Correct Answer: none of these
- 3. Nitrilase is encoded by
Options- A. gene bxn in Klebsiella pneumoniae
- B. bar gene in Streptomyces spp
- C. both (a) and (b)
- D. none of these Discuss
Correct Answer: gene bxn in Klebsiella pneumoniae
- 4. In transgenic plants that have been manipulated to express patho-genesis-related (PR) proteins all the time it has been shown that
Options- A. these provide no protection at all against pathogens
- B. expression of one PR protein provides high levels of protection against many pathogens
- C. expression of two PR proteins provides some protection against a few pathogens
- D. these proteins trigger the production of other antimicrobial defenses Discuss
Correct Answer: these proteins trigger the production of other antimicrobial defenses
- 5. Bruise resistant tomatoes have been developed by the expression of antisense RNA against
Options- A. glycerol 1 phosphate acyl transferase
- B. polygalactouranase
- C. ACC deaminase
- D. Sucrose phosphate synthase gene Discuss
Correct Answer: polygalactouranase
- 6. A naturally occurring variant, possessing characteristics of interest, is identified. This plant is selectively bred. This is an example of
Options- A. traditional plant breeding
- B. transgenic technology
- C. mutant selection
- D. none of these Discuss
Correct Answer: traditional plant breeding
- 7. Transplastomics
Options- A. targets genes in the chloroplast
- B. provides exceptionally low yields of protein products
- C. produces genes that are released in pollen
- D. offers little opportunity for practical use Discuss
Correct Answer: targets genes in the chloroplast
- 8. Which cell-based technology endows a cell with increased ability to harness energy?
Options- A. Chlybridization
- B. Cybridization
- C. Mibridization
- D. Protoplast fusion Discuss
Correct Answer: Chlybridization
- 9. For developing herbicide resistance in transgenic plants which of the following approach/(es) is/are used?
Options- A. Target molecule is made insensitive to herbicide
- B. Target protein is overproduced
- C. A pathway should be introduced that detoxify the herbicide
- D. All of the above Discuss
Correct Answer: All of the above
- 10. A __________ is a small laboratory set up to simulate conditions of a particular environment.
Options- A. microcosm
- B. mibridization
- C. bioremediation
- D. rhizosecretion Discuss
Correct Answer: microcosm
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