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MCQs

Total Questions : 222 | Page 6 of 23 pages
Question 51. In response to the activating signal molecule, an endonuclease is produced that causes nicks in the T-DNA. It is encoded by
  1.    vir A
  2.    vir B
  3.    vir C
  4.    vir D
 Discuss Question
Answer: Option D. -> vir D
Answer: (d).vir D
Question 52. Which of the following is true about Agrobacterium tumefaciens?
  1.    It causes crown gall disease of plants
  2.    It infects gymosperms
  3.    It infects dicotyledonous angiosperms
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Answer: (d).All of the above
Question 53. In the liposome mediated gene transfer in plants, nucleic acids are
  1.    protected from nuclease digestion
  2.    stable in liposomes
  3.    both (a) and (b)
  4.    not stable in liposomes
 Discuss Question
Answer: Option C. -> both (a) and (b)
Answer: (c).both (a) and (b)
Question 54. Which of the following constituent/(s) is/are added to help in speedy generation of meristem culture in case of Ipomoea batatas improvement?
  1.    Auxins
  2.    Cytokinins
  3.    Both (a) and (b)
  4.    Adenine
 Discuss Question
Answer: Option C. -> Both (a) and (b)
Answer: (c).Both (a) and (b)
Question 55. Somaclonal variation method refers to
  1.    heritable changes
  2.    genetic isolation
  3.    small number of species having limited commercial potential
  4.    large number of plant cells
 Discuss Question
Answer: Option A. -> heritable changes
Answer: (a).heritable changes
Question 56. CDNA clone prepared to stigma mRNA of Brassica oleracea can be used as a probe on DNA digests of segregating populations to recognize
  1.    Aegilops
  2.    Triticum
  3.    Both (a) and (b)
  4.    S alleles
 Discuss Question
Answer: Option D. -> S alleles
Answer: (d).S alleles
Question 57. α and β cyclo dextrins are produced by
  1.    transgenic tomato
  2.    transgenic maize
  3.    transgenic potato
  4.    transgenic wheat
 Discuss Question
Answer: Option C. -> transgenic potato
Answer: (c).transgenic potato
Question 58. α and β cyclo dextrins are used for
  1.    pharmaceutical delivery system
  2.    flavour and odour enhancement in foods
  3.    removal of undesired compounds like caffeine from foods
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Answer: (d).all of the above
Question 59. Opine synthesis is the property
  1.    conferred to plant cells when it transformed by Agrobacterium tumefaciens
  2.    determined by the bacteria Agrobacterium tumefaciens
  3.    both (a) and (b)
  4.    of normal plant cells
 Discuss Question
Answer: Option C. -> both (a) and (b)
Answer: (c).both (a) and (b)
Question 60. The right segment of octopine T-DNA (TR) is necessary for
  1.    enzymes for agropine biosynthesis
  2.    tumour formation
  3.    conjugative transfer
  4.    all of these
 Discuss Question
Answer: Option A. -> enzymes for agropine biosynthesis
Answer: (a).enzymes for agropine biosynthesis

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