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Home Biotechnology Transgenic Plant Comments

  • Question
  • 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

  • Correct Answer
  • these proteins trigger the production of other antimicrobial defenses 


  • Transgenic Plant problems


    Search Results


    • 1. 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
    • 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
    • 3. 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
    • 4. The first field tests were conducted with which of the following genetically altered organism?

    • Options
    • A. bt Corn
    • B. Vaccinia virus containing a gene from the rabies virus
    • C. The flavrsavr tomato
    • D. Strawberry seedlings sprayed with ice-minus bacteria
    • Discuss
    • 5. 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
    • 6. 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
    • 7. 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
    • 8. 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
    • 9. Which cell-based technology endows a cell with increased ability to harness energy?

    • Options
    • A. Chlybridization
    • B. Cybridization
    • C. Mibridization
    • D. Protoplast fusion
    • Discuss
    • 10. 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


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