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Microbiology

TRANSCRIPTION MCQs

Total Questions : 17

Page 1 of 2 pages
Question 1. Which of the following statement defines a replicon?
  1.    A DNA template which is used in transcription
  2.    A DNA molecule that is able to replicate and be maintained
  3.    A DNA molecule that encodes pili for conjugation
  4.    The enzyme responsible for transposition
 Discuss Question
Answer is Option B. -> A DNA molecule that is able to replicate and be maintained
Question 2. What is the usual sequence of a Pribnow box?
  1.    UUUUU
  2.    AUAUA
  3.    TTGACA
  4.    TATAAT
 Discuss Question
Answer is Option D. -> TATAAT
Question 3. Which of the following enzyme is used for synthesis of RNA under the direction of DNA?
  1.    DNA polymerase
  2.    RNA polymerase
  3.    DNA ligase
  4.    RNA ligase
 Discuss Question
Answer is Option B. -> RNA polymerase
Question 4. Which of the following component of RNA polymerase facilitates the recognition of promoter sequences?
  1.    s subunit
  2.    c subunit
  3.    b subunit
  4.    a subunit
 Discuss Question
Answer is Option A. -> s subunit
Question 5. Which eukaryotic RNA polymerase makes tRNA's?
  1.    RNA polymerase 2
  2.    RNA polymerase 1
  3.    RNA polymerase 3
  4.    Any of these
 Discuss Question
Answer is Option C. -> RNA polymerase 3
Question 6. The location of first hexameric sequence typically found in pro-karyotic promoters is
  1.    approximately 35 bases upstream of the transcription start site
  2.    at the transcription start site
  3.    approximately 10 bases upstream of the transcription start site
  4.    approximately 25 bases upstream of the transcription start site
 Discuss Question
Answer is Option A. -> approximately 35 bases upstream of the transcription start site
Question 7. Which of the following is a product of transcription?
  1.    mRNA
  2.    tRNA
  3.    all of these
  4.    rRNA
 Discuss Question
Answer is Option C. -> all of these
Question 8. The synthesis of mRNA based on a DNA template is called
  1.    translation
  2.    DNA replication
  3.    DNA restriction
  4.    transcription
 Discuss Question
Answer is Option D. -> transcription
Question 9. The sigma factor
  1.    provides the catalytic function of cleaving off pyrophosphates during mRNA synthesis
  2.    recognizes the promotor
  3.    accomplishes DNA restriction
  4.    is responsible for recognizing the termination sequence
 Discuss Question
Answer is Option B. -> recognizes the promotor
Question 10. Recognition/binding site of RNA polymerase is called
  1.    terminator
  2.    promoter
  3.    facilitator
  4.    receptor
 Discuss Question
Answer is Option B. -> promoter
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Sub Topics

  • Actinomycetes And Non Sporing Anaerobes
  • Algae And Protozoa
  • Antibiotics And Chemotherapeutic Agents
  • Antibodies And Immune System
  • Bacillus
  • Bacteria
  • Bacteria Morphology
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  • Cell Cultivations
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  • Dna Replication
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  • Energy Release And Conservation
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  • Transcription
  • Translation And Regulation
  • Vibrio
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