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MCQs

Total Questions : 348 | Page 30 of 35 pages
Question 291. Which of the phage types of Mycobacterium tuberculosis occurs most frequently in India?
  1.    Type A
  2.    Type B
  3.    Type C
  4.    Type I
 Discuss Question
Answer: Option D. -> Type I
Answer: (d).Type I
Question 292. Which of the following bacteria is sensitive to pyrazinamide?
  1.    Mycobacterium tuberculosis
  2.    M bovis
  3.    M fortuitum
  4.    None of these
 Discuss Question
Answer: Option A. -> Mycobacterium tuberculosis
Answer: (a).Mycobacterium tuberculosis
Question 293. Members of the genus Mycobacterium are
  1.    gram-positive
  2.    acid-fast
  3.    non-motile
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Answer: (d).all of these
Question 294. The bacteria which cause(s) tuberculosis in man is/are
  1.    M bovis
  2.    Mycobacterium tuberculosis
  3.    M africanum
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Answer: (d).All of these
Question 295. A positive Mantoux test indicates an area of induration of
  1.    4-9 mm in diameter
  2.    1-4 mm in diameter
  3.    10 mm or more in diameter
  4.    None of these
 Discuss Question
Answer: Option C. -> 10 mm or more in diameter
Answer: (c).10 mm or more in diameter
Question 296. The process by which phage reproduction is initiated in lysogenized culture is called
  1.    infection
  2.    integration
  3.    repression
  4.    induction
 Discuss Question
Answer: Option D. -> induction
Answer: (d).induction
Question 297. Area of lysis on a bacterial lawn culture produced by a phage is known as
  1.    pock
  2.    plaque
  3.    pox
  4.    all of these
 Discuss Question
Answer: Option B. -> plaque
Answer: (b).plaque
Question 298. Which capsid symmetry is exhibited by most of the phages?
  1.    Helical
  2.    Icosahedral
  3.    Complex
  4.    None of these
 Discuss Question
Answer: Option B. -> Icosahedral
Answer: (b).Icosahedral
Question 299. Which of the following is/are synthesized from late mRNA?
  1.    Phage structural proteins
  2.    Proteins that help with phage assembly without becoming part of the virion structure
  3.    Proteins involved in cell lysis and phage release
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Answer: (d).All of the above
Question 300. The procapsid is assembled with the aid of __________ proteins.
  1.    ladder
  2.    framing
  3.    scaffolding
  4.    form
 Discuss Question
Answer: Option C. -> scaffolding
Answer: (c).scaffolding

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