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MCQs

Total Questions : 74 | Page 3 of 8 pages
Question 21. Microinjection technique of introducing NA is a
  1.    combination of physical and biological method
  2.    biological method
  3.    physical method
  4.    chemical method
 Discuss Question
Answer: Option C. -> physical method
Question 22. Somaclonal variation method refers to
  1.    small number of species having limited commercial potential
  2.    genetic isolation
  3.    heritable changes
  4.    large number of plant cells
 Discuss Question
Answer: Option C. -> heritable changes
Question 23. α and β cyclo dextrins are produced by
  1.    transgenic tomato
  2.    transgenic maize
  3.    transgenic wheat
  4.    transgenic potato
 Discuss Question
Answer: Option D. -> transgenic potato
Question 24. α and β cyclo dextrins are used for
  1.    All of these
  2.    flavour and odour enhancement in foods
  3.    pharmaceutical delivery system
  4.    removal of undesired compounds like caffeine from foods
 Discuss Question
Answer: Option A. -> All of these
Question 25. MS medium, is found essential for initial morphogenesis of the immature embryos and to enhance callus development, when supplemented with
  1.    GA3 and coconut milk
  2.    GA3
  3.    adenine
  4.    adenine and kinetin
 Discuss Question
Answer: Option A. -> GA3 and coconut milk
Question 26. Plant tissue culture technique is used to select somaclones that are
  1.    not resistant to insecticides
  2.    resistant to insecticides
  3.    resistant to herbicide
  4.    not resistant to herbicide
 Discuss Question
Answer: Option C. -> resistant to herbicide
Question 27. Cultivated tomato species (Lycopersicon esculentum) is highly susceptible to
  1.    Meloidogyne spp. nematodes
  2.    Solarium melongena
  3.    L. peruviaanum
  4.    both (a) and (b)
 Discuss Question
Answer: Option A. -> Meloidogyne spp. nematodes
Question 28. In transgenic plants of Arabidipsis thaliana which of the following gene is transferred for the synthesis of PHB (polyhdroxybutyrate)?
  1.    Polyhydroxybutyrate synthease
  2.    Acetyl Co A reductase
  3.    Both (a) and (b)
  4.    Pyrophosphorylase
 Discuss Question
Answer: Option C. -> Both (a) and (b)
Question 29. Which of the following is the class of hybridization?
  1.    Intergeneric
  2.    Intervarietal
  3.    all of these
  4.    Interspecific
 Discuss Question
Answer: Option C. -> all of these
Question 30. Which of the following mutant/(s) has/have increased amount of lysine and/or methionine in corn seeds?
  1.    All of these
  2.    Opaque-2
  3.    Sugary-1
  4.    Flory-2
 Discuss Question
Answer: Option A. -> All of these

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