Sail E0 Webinar

MCQs

Total Questions : 37 | Page 3 of 4 pages
Question 21.  Which of the following statement defines a replicon?
  1.    A DNA molecule that encodes pili for conjugation
  2.    A DNA molecule that is able to replicate and be maintained
  3.    A DNA template which is used in transcription
  4.    The enzyme responsible for transposition
 Discuss Question
Answer: Option B. -> A DNA molecule that is able to replicate and be maintained
Question 22.  The location of first hexameric sequence typically found in pro-karyotic promoters is
  1.    at the transcription start site
  2.    approximately 35 bases upstream of 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: Option B. -> approximately 35 bases upstream of the transcription start site
Question 23.  What is the usual sequence of a Pribnow box?
  1.    AUAUA
  2.    TATAAT
  3.    UUUUU
  4.    TTGACA
 Discuss Question
Answer: Option B. -> TATAAT
Question 24.  Which of the following is a product of transcription?
  1.    mRNA
  2.    tRNA
  3.    rRNA
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Question 25.  The sigma factor
  1.    is responsible for recognizing the termination sequence
  2.    provides the catalytic function of cleaving off pyrophosphates during mRNA synthesis
  3.    recognizes the promotor
  4.    accomplishes DNA restriction
 Discuss Question
Answer: Option C. -> recognizes the promotor
Question 26.  The synthesis of mRNA based on a DNA template is called
  1.    DNA replication
  2.    transcription
  3.    translation
  4.    DNA restriction
 Discuss Question
Answer: Option B. -> transcription
Question 27. . Which of these catalyzes the synthesis of RNA from a DNA template?
  1.    DNA gyrase
  2.    DNA ligase
  3.    DNA polymerase
  4.    RNA polymerase
 Discuss Question
Answer: Option D. -> RNA polymerase
Question 28. . Recognition/binding site of RNA polymerase is called
  1.    receptor
  2.    promoter
  3.    facilitator
  4.    terminator
 Discuss Question
Answer: Option B. -> promoter
Question 29. . Which of the following enzyme(s) is/are required for lactose fermentation?
  1.    Transacetylase
  2.    β-galactosidase
  3.    Galactoside permease
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Question 30. . An mRNA transcript of a gene contains
  1.    a start codon
  2.    a stop codon
  3.    a terminator
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these

Latest Videos
Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)
Direction Sense Test Part 1 Reasoning (Hindi)
Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE
Cube & Cuboid Part 1 Reasoning (Hindi)
Data Interpretation (DI) Basic Concept Reasoning (Hindi)
Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)
Sail E0 free webinar Webinars
Real Numbers Part 7 Class 10 Maths
Real Numbers Part 1 Class 10 Maths
Polynomials Part 1 Class 10 Maths

Latest Test Papers

Pie Chart - Test Paper 1 Data Interpretation Reasoning & DI
Tabulation - Test Paper 2 Data Interpretation Reasoning & DI
Test Paper 1 Direction Sense Test Reasoning & DI
ICA , RDIC,GFM Free Modal Test Paper - Non - Technical Branch Old Syllabus 2022 - SAIL Junior Officer E0
GFM Combined 1 Free Revision Test SAIL JO E-0