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MCQs

Total Questions : 189 | Page 5 of 19 pages
Question 41. If genetic material of another species is added into the host then organism resulting from this is classified as
  1.    clone genes
  2.    transgenic
  3.    cisgenic
  4.    cross genes
 Discuss Question
Answer: Option B. -> transgenic
Answer: (b).transgenic
Question 42. If genetic material from same species is used or species that can naturally breed with the host then the organism generated is
  1.    clone genes
  2.    transgenic
  3.    cisgenic
  4.    cross genes
 Discuss Question
Answer: Option C. -> cisgenic
Answer: (c).cisgenic
Question 43. OEE1 gene encodes a component of _________
  1.    photosystem I
  2.    photosystem II
  3.    both photosystem I and II
  4.    which neither belongs to photosystem I nor II
 Discuss Question
Answer: Option B. -> photosystem II
Answer: (b).photosystem II
Question 44. Transformation of Chlamydomonas is most efficient in which method?
  1.    Lithium acetate method
  2.    Electroporation
  3.    Protoplast based method
  4.    Both electroporation and protoplast based method
 Discuss Question
Answer: Option C. -> Protoplast based method
Answer: (c).Protoplast based method
Question 45. Basically, there are how many methods for introduction of DNA into the bacterial cells?
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option C. -> 3
Answer: (c).3
Question 46. Which of the bacteria are used as hosts?
  1.    Gram-positive
  2.    Gram-negative
  3.    Both gram positive and negative are preferred equally
  4.    Both can be used but gram positive is preferred
 Discuss Question
Answer: Option D. -> Both can be used but gram positive is preferred
Answer: (d).Both can be used but gram positive is preferred
Question 47. Competence is determined by the excretion into growth medium of _______ & _________ proteins called as competence proteins.
  1.    cellular & high molecular weight
  2.    cellular & low molecular weight
  3.    extracellular & low molecular weight
  4.    extracellular & high molecular weight
 Discuss Question
Answer: Option C. -> extracellular & low molecular weight
Answer: (c).extracellular & low molecular weight
Question 48. Gram-positive Bacillus, Streptococcus and Streptomyces include species that don’t exhibit natural competence.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 49. Natural transformation can be relieved by the use of protoplasts, in the presence of osmotic buffer and polyethylene glycol. What are protoplasts?
  1.    Protoplasts are the cells from which cell membrane has been removed
  2.    Protoplasts are the cells from which cell wall has been removed
  3.    Protoplasts are the cells from which vacuole has been removed
  4.    Protoplasts are the cells from which golgi bodies are removed
 Discuss Question
Answer: Option B. -> Protoplasts are the cells from which cell wall has been removed
Answer: (b).Protoplasts are the cells from which cell wall has been removed
Question 50. Transfer of plasmids from one cell to another can also be done conjugation. The plasmid to be transferred known as ______ is often unable to do so by itself and thus it relies on other plasmids known as ______
  1.    cargo, conjugal
  2.    conjugal, cargo
  3.    cargo, helper
  4.    conjugal, helper
 Discuss Question
Answer: Option A. -> cargo, conjugal
Answer: (a).cargo, conjugal

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