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MCQs

Total Questions : 107 | Page 7 of 11 pages
Question 61.  Which of the following gene is responsible for resistance against chilling?
  1.    Glycerol 1 phosphate acyl transferase
  2.    Polygalactouranase
  3.    ACC deaminase
  4.    Sucrose phosphate synthase gene
 Discuss Question
Answer: Option A. -> Glycerol 1 phosphate acyl transferase
Question 62. . Which of the following gene detoxifies herbicide phosphinothricin?
  1.    Nitrilase
  2.    Glutathione S-transferase (GST)
  3.    Phosphinothricin acetyl transferase
  4.    All of these
 Discuss Question
Answer: Option C. -> Phosphinothricin acetyl transferase
Question 63. . Plants containing genes encoding cytokines and blood clotting factors are used in
  1.    nutrition improvement
  2.    pharmaceutical production
  3.    vaccine production
  4.    textile production
 Discuss Question
Answer: Option B. -> pharmaceutical production
Question 64. . Transgenic plants with increased tolerance to aluminum have been produced by making plants that
  1.    secrete phytosiderophores into the soil
  2.    make more metal-binding peptides like phytochelatins
  3.    bind aluminum to the cell wall
  4.    secrete citrate into the soil
 Discuss Question
Answer: Option D. -> secrete citrate into the soil
Question 65. . Plants derived sexually from the same plant are____ while those derived from somatic tissue from the same plant are____.
  1.    identical, different
  2.    different, also different
  3.    different, identical
  4.    plants cannot be derived from somatic tissue
 Discuss Question
Answer: Option C. -> different, identical
Question 66. . Transplastomics
  1.    targets genes in the chloroplast
  2.    provides exceptionally low yields of protein products
  3.    produces genes that are released in pollen
  4.    offers little opportunity for practical use
 Discuss Question
Answer: Option A. -> targets genes in the chloroplast
Question 67. . The first transgenic plants expressing engineered foreign genes were tobacco plants produced by the use of
  1.    Agrobacterium tumefaciens
  2.    Bacillus thuringiensis
  3.    Arabidopsis thaliana
  4.    Streptomyces hygroscopicus
 Discuss Question
Answer: Option A. -> Agrobacterium tumefaciens
Question 68. . 
Low temperatures induce the expression of many cold-induced genes. Transgenic plants with improved cold tolerance have been produced by
  1.    expressing the protein that activates expression of these genes all the time in plants
  2.    cooling plants using the Peltier effect
  3.    expressing a gene for production of antifreeze (ethylene glycol) in plants
  4.    increasing evaporative cooling from leaf surfaces
 Discuss Question
Answer: Option A. -> expressing the protein that activates expression of these genes all the time in plants
Question 69. . Transgenic plants
  1.    contain foreign genes in their cells
  2.    are used to produce human antibodies
  3.    both (a) and (b)
  4.    are plants that differ in geographical locations
 Discuss Question
Answer: Option C. -> both (a) and (b)
Question 70. . Nitrilase is encoded by
  1.    gene bxn in Klebsiella pneumoniae
  2.    bar gene in Streptomyces spp
  3.    both (a) and (b)
  4.    none of these
 Discuss Question
Answer: Option A. -> gene bxn in Klebsiella pneumoniae

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