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MCQs

Total Questions : 105 | Page 5 of 11 pages
Question 41. What is the work of the sigma factor in transcription?
  1.    Helicase action
  2.    Transcription initiation
  3.    Transcription elongation
  4.    Transcription termination
 Discuss Question
Answer: Option B. -> Transcription initiation
Answer: (b).Transcription initiation
Question 42. Which of the following is used to describe the time taken by RNA polymerase to leave the promoter?
  1.    Promoter clearance time
  2.    Abortive initiation
  3.    Elongation factor
  4.    Mean time
 Discuss Question
Answer: Option A. -> Promoter clearance time
Answer: (a).Promoter clearance time
Question 43. Name the sigma factor which is used for promoter recognition?
  1.    Sigma 32
  2.    Sigma 70
  3.    Sigma 60
  4.    Sigma 40
 Discuss Question
Answer: Option B. -> Sigma 70
Answer: (b).Sigma 70
Question 44. Which of the following transcription termination technique has RNA dependent ATPase activity?
  1.    Intercalating agents
  2.    Rho dependent
  3.    Rho independent
  4.    Rifampcin
 Discuss Question
Answer: Option B. -> Rho dependent
Answer: (b).Rho dependent
Question 45. How many base pairs of DNA is transcribed by RNA polymerase in one go?
  1.    5-6
  2.    3
  3.    4
  4.    7-8
 Discuss Question
Answer: Option D. -> 7-8
Answer: (d).7-8
Question 46. Name the one intrinsic terminator of transcription.
  1.    Intercalating agents
  2.    Rho independent
  3.    Rho dependent
  4.    Acridine orange
 Discuss Question
Answer: Option B. -> Rho independent
Answer: (b).Rho independent
Question 47. The process of modification of pre mRNA is known as___________
  1.    Replication
  2.    DNA repair
  3.    Translation
  4.    RNA processing
 Discuss Question
Answer: Option D. -> RNA processing
Answer: (d).RNA processing
Question 48. In eukaryotes, transcription and translation take place in the same compartment.
  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. Mark the one, which is NOT the transcription inhibitor in eukaryotes.
  1.    Rifampicin
  2.    Acridine dye
  3.    Actinomycin D
  4.    Rho factor
 Discuss Question
Answer: Option D. -> Rho factor
Answer: (d).Rho factor
Question 50. Which of the following is NOT the step of mRNA processing?
  1.    5’ capping
  2.    Splicing of introns
  3.    Polyadenylation
  4.    RNA silencing
 Discuss Question
Answer: Option D. -> RNA silencing
Answer: (d).RNA silencing

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