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MCQs

Total Questions : 105 | Page 8 of 11 pages
Question 71. Which of the following form 5’cap?
  1.    5’ ——> 5’ PPP linkage
  2.    5’ ——> 3’ PPP linkage
  3.    3’ ——> 3’ PPP linkage
  4.    3’ ——> 5’ NPP linkage
 Discuss Question
Answer: Option A. -> 5’ ——> 5’ PPP linkage
Answer: (a).5’ ——> 5’ PPP linkage
Question 72. Name the type of intron which needs spliceosomes to be spliced?
  1.    Group I intron
  2.    Group IV intron
  3.    Nuclear intron
  4.    Group II intron
 Discuss Question
Answer: Option C. -> Nuclear intron
Answer: (c).Nuclear intron
Question 73. Choose the INCORRECT statement about 5’ cap.
  1.    Recognized by the transport protein
  2.    Provide stability to RNA
  3.    Participate in the translation initiation
  4.    Increase the life span of RNA
 Discuss Question
Answer: Option D. -> Increase the life span of RNA
Answer: (d).Increase the life span of RNA
Question 74. Name the term where a single pre-mRNA is processed into a number of products?
  1.    Alternate splicing
  2.    Polyadenylation
  3.    Capping
  4.    Intron removal
 Discuss Question
Answer: Option A. -> Alternate splicing
Answer: (a).Alternate splicing
Question 75. Which of the following group of introns form stable lariat structure?
  1.    Group I intron
  2.    Group II intron
  3.    Nuclear intron
  4.    Group III intron
 Discuss Question
Answer: Option B. -> Group II intron
Answer: (b).Group II intron
Question 76. Which of the following recognize a specific amino acid and its cognate t-RNA molecule?
  1.    t-RNA synthetase
  2.    Ribososme
  3.    r-RNA
  4.    Topoisomerase
 Discuss Question
Answer: Option A. -> t-RNA synthetase
Answer: (a).t-RNA synthetase
Question 77. Name the inhibitor which blocks translation in both prokaryotes as well as eukaryotes?
  1.    Chlorophenicol
  2.    Tetracycline
  3.    Puromycin
  4.    Streptomycin
 Discuss Question
Answer: Option C. -> Puromycin
Answer: (c).Puromycin
Question 78. Which of the following inhibitor block translation in eukaryotes?
  1.    Cyclohexamine
  2.    Tetracycline
  3.    Puromycin
  4.    Streptomycin
 Discuss Question
Answer: Option A. -> Cyclohexamine
Answer: (a).Cyclohexamine
Question 79. Damage and errors in DNA cause___________
  1.    Mutation
  2.    DNA repair
  3.    Translation
  4.    Transcription
 Discuss Question
Answer: Option A. -> Mutation
Answer: (a).Mutation
Question 80. Name the drug which inhibits the initiation step of translation.
  1.    Cyclohexamine
  2.    Tetracycline
  3.    Ricin
  4.    Streptomycin
 Discuss Question
Answer: Option D. -> Streptomycin
Answer: (d).Streptomycin

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