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MCQs

Total Questions : 189 | Page 6 of 19 pages
Question 51. The transfer of plasmid from one bacterial cell to another when cargo and conjugal plasmids are used, it is usually is carried out by _____ mating.
  1.    diparental
  2.    uniparental
  3.    triparental
  4.    multiparental
 Discuss Question
Answer: Option C. -> triparental
Answer: (c).triparental
Question 52. Loss of SUP4 abolishes canavanine uptake, it is arginine analogue.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 53. One of the commonly used markers is the URA3 gene. It encodes for ______ biosynthesis.
  1.    adenine
  2.    uracil
  3.    guanine
  4.    cytosine
 Discuss Question
Answer: Option B. -> uracil
Answer: (b).uracil
Question 54. CAN1 gene encodes a permease that causes uptake of _________ analogue.
  1.    toxic guanidine
  2.    toxic arginine
  3.    non-toxic guanidine
  4.    non-toxic arginine
 Discuss Question
Answer: Option B. -> toxic arginine
Answer: (b).toxic arginine
Question 55. How many deletion variations of GAL1 promoter are there?
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option B. -> 2
Answer: (b).2
Question 56. Promoters such as GAL1 can be used to direct synthesis of either unmodified or fusion proteins.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 57. Which of the following are advantageous to be used for expression of eukaryotic cells?
  1.    Prokaryotic systems
  2.    Yeast cells
  3.    Fungi cells
  4.    Algae cells
 Discuss Question
Answer: Option B. -> Yeast cells
Answer: (b).Yeast cells
Question 58. Secretion of overexpressed proteins by fusion to a secretion signal can be useful because it helps in bringing about correct _______ and _____ protein folding.
  1.    glycosylation, enhance
  2.    glycosylation, not affect
  3.    phosphorylation, enhance
  4.    phosphorylation, not affect
 Discuss Question
Answer: Option A. -> glycosylation, enhance
Answer: (a).glycosylation, enhance
Question 59. The enzyme used for breaking down of sucrose into glucose and fructose is called as _______________
  1.    sucrase
  2.    glucanase
  3.    maltase
  4.    invertase
 Discuss Question
Answer: Option D. -> invertase
Answer: (d).invertase
Question 60. For introduction of exogenous DNA into S.cerevisiae ______ is added along with polyethylene glycol and heat shock treatment.
  1.    calcium chloride
  2.    sodium acetate
  3.    lithium acetate
  4.    magnesium chloride
 Discuss Question
Answer: Option C. -> lithium acetate
Answer: (c).lithium acetate

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