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MCQs

Total Questions : 310 | Page 8 of 31 pages
Question 71. The synthesis of polynucleotide chain of mRNA is catalyzed by the enzyme _____________
  1.    RNA helicase
  2.    RNA polymerase
  3.    DNA polymerase
  4.    DNA helicase
 Discuss Question
Answer: Option B. -> RNA polymerase
Answer: (b).RNA polymerase
Question 72. Rho factor is a dimeric protein factor.
  1.    True
  2.    False
  3.    May be
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 73. Which of the following is responsible for the initiation of RNA polymerase activity?
  1.    initiation site
  2.    promoter region
  3.    sigma factor
  4.    rho factor
 Discuss Question
Answer: Option C. -> sigma factor
Answer: (c).sigma factor
Question 74. Which of the following are non-sense codons?
  1.    AUG
  2.    GUG
  3.    UAA
  4.    UCU
 Discuss Question
Answer: Option C. -> UAA
Answer: (c).UAA
Question 75. The following code codes for which of the amino acid respectively?
AUG and GUG
  1.    Phenylalanine,tyrosine
  2.    Methionine,valine
  3.    Methionine,alanine
  4.    Lysine,valine
 Discuss Question
Answer: Option B. -> Methionine,valine
Answer: (b).Methionine,valine
Question 76. The step where glyceraldehyde-3-phosphate is oxidized is a substrate-level phosphorylation.
  1.    True
  2.    False
  3.    May be
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 77. Xylulose-5-phosphate is an intermediate in ___________
  1.    Glycolysis
  2.    Pentose Phosphate Pathway
  3.    Entner-Doudoroff Pathway
  4.    Fermentation
 Discuss Question
Answer: Option B. -> Pentose Phosphate Pathway
Answer: (b).Pentose Phosphate Pathway
Question 78. How many molecules of glucose-6-phosphate are regenerated in pentose-phosphate pathway?
  1.    3
  2.    2
  3.    5
  4.    4
 Discuss Question
Answer: Option C. -> 5
Answer: (c).5
Question 79. Entner-Doudoroff pathway takes place only in procaryotes.
  1.    True
  2.    False
  3.    May be
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 80. Which of the following are propionic acid bacteria?
  1.    Streptococcus
  2.    Acetobacter
  3.    Clostridium
  4.    Veillonella
 Discuss Question
Answer: Option D. -> Veillonella
Answer: (d).Veillonella

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