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MCQs

Total Questions : 48 | Page 4 of 5 pages
Question 31. . Radial Immunodiffusion is similar to
  1.    double-diffusion
  2.    gel diffusion
  3.    Ouchterloney technique
  4.    all of these
 Discuss Question
Answer: Option A. -> double-diffusion
Question 32.  Different form of a plasmid, on an agarose gel, after electrophoresis may be in which of the following sequence in decreasing molecular weight?
  1.    Open circular, super coiled, linear plasmid DNA
  2.    Linear plasmid, open circular, super coiled plasmid
  3.    Open circular, super coiled, linear plasmid DNA
  4.    Open circular, linear plasmid, super coiled plasmid
 Discuss Question
Answer: Option B. -> Linear plasmid, open circular, super coiled plasmid
Question 33.  In Rocket Immunodiffusion the length of the rocket is
  1.    proportional to the amount of antibody placed in each well
  2.    inversely proportional to the amount of antibody placed in each well
  3.    inversely proportional to the amount of antigen placed in each well
  4.    proportional to the amount of antigen placed in each well
 Discuss Question
Answer: Option D. -> proportional to the amount of antigen placed in each well
Question 34. . What is approximatively the half life of 32-Phosphorus?
  1.    14 days
  2.    28 days
  3.    42 days
  4.    30 days
 Discuss Question
Answer: Option A. -> 14 days
Question 35. . 
Agarose a porous matrix used in various molecular biology technique is made by repetitive units of
  1.    maltose
  2.    agarobiose
  3.    agar
  4.    none of these
 Discuss Question
Answer: Option A. -> maltose
Question 36. . Which of the following radioactive element is generally involved in RIA?
  1.    Tritium
  2.    Carbon-14
  3.    Iodine-125
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Question 37. . What radioactive molecule is used to end-label an oligonucleotide?
  1.    (alpha)-32P-ATP
  2.    (alpha)-32P-dUTP
  3.    (gamma)-32P-ATP
  4.    Any of these
 Discuss Question
Answer: Option C. -> (gamma)-32P-ATP
Question 38. . Rocket Immunodiffusion is also known as
  1.    gel diffusion
  2.    electroimmunodiffusion
  3.    double-diffusion
  4.    none of these
 Discuss Question
Answer: Option B. -> electroimmunodiffusion
Question 39. . DNA- footprinting is a suitable technique for identifying which of the following?
  1.    Particular mRNA in mixture
  2.    Particular t-RNA in mixture
  3.    Introns within DNA
  4.    Protein binding site within DNA
 Discuss Question
Answer: Option D. -> Protein binding site within DNA
Question 40. . RAST test (radio allergosorbent test) is often used to detect
  1.    antibodies associated with allergies (IgE)
  2.    antigen associated with allergies (IgE)
  3.    bacteriophages
  4.    None of the above
 Discuss Question
Answer: Option A. -> antibodies associated with allergies (IgE)

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