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MCQs

Total Questions : 189 | Page 19 of 19 pages
Question 181. Cw15 is a mutant strain, it ________ and thus called as ________
  1.    lacks cell wall, natural protoplast
  2.    lacks cell wall, artificial protoplast
  3.    has cell wall, artificial protoplast
  4.    has cell wall, natural protoplast
 Discuss Question
Answer: Option A. -> lacks cell wall, natural protoplast
Answer: (a).lacks cell wall, natural protoplast
Question 182. Members of genera Haematococcus are used for production of ____________
  1.    xanthenoid
  2.    carotenoid
  3.    chlorophyll
  4.    carotenoid and xanthenoid both
 Discuss Question
Answer: Option B. -> carotenoid
Answer: (b).carotenoid
Question 183. For Chlorella, which method is used for DNA uptake?
  1.    Electroporation
  2.    Direct uptake of naked DNA
  3.    Conjugation
  4.    Chemically induced uptake by protoplast
 Discuss Question
Answer: Option D. -> Chemically induced uptake by protoplast
Answer: (d).Chemically induced uptake by protoplast
Question 184. Genetic manipulation of Volvox carteri is carried out using nitrogen reducatse or antibiotic resistance.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't Say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 185. An organism containing a gene which doesn’t belong to it and is derived from somewhere else then the organism is said to be ___________
  1.    transformed
  2.    transgenic
  3.    mutant
  4.    modified
 Discuss Question
Answer: Option B. -> transgenic
Answer: (b).transgenic
Question 186. E.coli is a gram negative bacterium.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 187. If plasmids direct their own transfer from one bacterium cell to another, then they are called as ___________
  1.    self-transmissible
  2.    auto-transmissible
  3.    autonomously replicating
  4.    auto-transfer
 Discuss Question
Answer: Option A. -> self-transmissible
Answer: (a).self-transmissible
Question 188. Choose the incorrect statement for shuttle vectors.
  1.    These are vector hybrids constructed from E.coli and other plasmids
  2.    They are having a varied use
  3.    They can replicate and selected in both the species
  4.    They are the plasmids which are having naturally broad host range
 Discuss Question
Answer: Option D. -> They are the plasmids which are having naturally broad host range
Answer: (d).They are the plasmids which are having naturally broad host range
Question 189. If a plasmid can’t be transferred from one cell to another, then it is called as ___________
  1.    non-transmissible
  2.    non-mobilizable
  3.    untransferrable
  4.    immobilized
 Discuss Question
Answer: Option B. -> non-mobilizable
Answer: (b).non-mobilizable

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