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MCQs

Total Questions : 107 | Page 9 of 11 pages
Question 81. . 
Bruise resistant tomatoes have been developed by the expression of antisense RNA against
  1.    glycerol 1 phosphate acyl transferase
  2.    polygalactouranase
  3.    ACC deaminase
  4.    Sucrose phosphate synthase gene
 Discuss Question
Answer: Option B. -> polygalactouranase
Question 82. . Antisense technology
  1.    selectively blocks expression of a gene
  2.    combines genetic material from different species
  3.    combines organelles and cells
  4.    alters or transfers cells
 Discuss Question
Answer: Option A. -> selectively blocks expression of a gene
Question 83. . Which cell-based technology endows a cell with increased ability to harness energy?
  1.    Chlybridization
  2.    Cybridization
  3.    Mibridization
  4.    Protoplast fusion
 Discuss Question
Answer: Option A. -> Chlybridization
Question 84. . The delayed ripening tomato was created by a biotechnologist who __________ a gene.
  1.    altered
  2.    silenced
  3.    replaced
  4.    relocated
 Discuss Question
Answer: Option B. -> silenced
Question 85. . Insect resistance in the transgenic plant has been achieved by
  1.    transferring genes for Bt toxins
  2.    transferring genes for protease inhibitors
  3.    transferring genes for other insecticidal secondary metabolities
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Question 86. . Antisense transgenic plants produced fruit that softened
  1.    more slowly than the normal fruit
  2.    more rapidly than the normal fruit
  3.    as the normal fruits
  4.    none of these
 Discuss Question
Answer: Option A. -> more slowly than the normal fruit
Question 87. . The first field tests were conducted with which of the following genetically altered organism?
  1.    bt Corn
  2.    Vaccinia virus containing a gene from the rabies virus
  3.    The flavrsavr tomato
  4.    Strawberry seedlings sprayed with ice-minus bacteria
 Discuss Question
Answer: Option D. -> Strawberry seedlings sprayed with ice-minus bacteria
Question 88. . Resistance to L-phosphinothrium in tobacco plants is developed by the transfer of
  1.    gene for EPSPS (5-enol-pyruvyl shikimat 3 phosphate synthase)
  2.    gene for ALS (acetolactate synthase)
  3.    gene for GS (glutamine synthase)
  4.    any of the above
 Discuss Question
Answer: Option C. -> gene for GS (glutamine synthase)
Question 89. . A __________ is a small laboratory set up to simulate conditions of a particular environment.
  1.    microcosm
  2.    mibridization
  3.    bioremediation
  4.    rhizosecretion
 Discuss Question
Answer: Option A. -> microcosm
Question 90. . The roots of a plant are converted into drug-producing structures in a process called
  1.    microcosm establishment
  2.    mibridization
  3.    bioremediation
  4.    rhizosecretion
 Discuss Question
Answer: Option D. -> rhizosecretion

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