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MCQs

Total Questions : 244 | Page 1 of 25 pages
Question 1. PCR is used
  1.    to diagnose genetic diseases
  2.    to solve crimes
  3.    to study gene function
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Answer: (d).all of these
Question 2. Bacteriophages are
  1.    cells in the blood that eat bacteria
  2.    a class of bacteria
  3.    bacterial viruses
  4.    none of the above
 Discuss Question
Answer: Option C. -> bacterial viruses
Answer: (c).bacterial viruses
Question 3. Specialized transduction occurs when
  1.    the bacteriophage incorporates randomly in the bacterial chromosome
  2.    the bacteriophage never incorporates into the bacterial chromosome
  3.    the bacteriophage always incorporates at the same position in the bacterial chromosome
  4.    none of the above
 Discuss Question
Answer: Option C. -> the bacteriophage always incorporates at the same position in the bacterial chromosome
Answer: (c).the bacteriophage always incorporates at the same position in the bacterial chromosome
Question 4. PCR can be used to amplify a specific fragment of DNA from which of the following?
  1.    A drop of blood
  2.    A hair follicle
  3.    A fragment of skin
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Answer: (d).All of these
Question 5. To clone into a plasmid vector, both the plasmid and the foreign DNA are cut
  1.    with the same restriction enzyme and mixed together
  2.    with different restriction enzyme and mixed together
  3.    with the combination of enzymes and then seperated
  4.    with the combination of enzymes and mixed together
 Discuss Question
Answer: Option A. -> with the same restriction enzyme and mixed together
Answer: (a).with the same restriction enzyme and mixed together
Question 6. An endemic disease of cardiomyopathy in children is attributed to
  1.    low Se in the environment
  2.    low intake of iron
  3.    high Se in the environment
  4.    high intake of iron
 Discuss Question
Answer: Option A. -> low Se in the environment
Answer: (a).low Se in the environment
Question 7. Selenium deficiency leads to
  1.    liver necrosis
  2.    diarrhea
  3.    multiple sclerosis
  4.    Crohn's disease
 Discuss Question
Answer: Option A. -> liver necrosis
Answer: (a).liver necrosis
Question 8. Manganese is a key component of all of the following enzymes except
  1.    arginase
  2.    pyruvate carboxylase
  3.    ceruloplasmin
  4.    Mn-superoxide dismutase
 Discuss Question
Answer: Option C. -> ceruloplasmin
Answer: (c).ceruloplasmin
Question 9. Which of the following statement is correct?
  1.    Sodium and chloride are the chief extracellular ions of the body
  2.    Sodium and chloride are primarily involved in maintaining osmotic equilibrium and body fluid volume.
  3.    Chloride ion is necessary for the production of hydrochloric acid of gastric juice.
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Answer: (d).All of these
Question 10. Which of the following is necessary for the clotting of blood, functions of certain enzymes and control of fluids through cell membranes?
  1.    Calcium
  2.    Magnesium
  3.    Copper
  4.    Cobalt
 Discuss Question
Answer: Option A. -> Calcium
Answer: (a).Calcium

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