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MCQs

Total Questions : 96 | Page 8 of 10 pages
Question 71.  Stuffer is
  1.    the right arm of the vector DNA
  2.    the left arm of the vector DNA
  3.    central fragment of the vector DNA
  4.    none of the above
 Discuss Question
Answer: Option C. -> central fragment of the vector DNA
Question 72. . Plasmid incompatibility is
  1.    inability of a plasmid to grow in the host
  2.    inability of two different plasmids to coexist in the same host cell in the absence of selection pressure.
  3.    both (a) and (b)
  4.    none of the above
 Discuss Question
Answer: Option B. -> inability of two different plasmids to coexist in the same host cell in the absence of selection pressure.
Question 73. . P1 cloning vector allow cloning of DNA of the length of
  1.    100 kbp
  2.    50 kbp
  3.    20 kbp
  4.    10 kbp
 Discuss Question
Answer: Option A. -> 100 kbp
Question 74. . Conjugative plasmids
  1.    exhibit antibiotic resistance
  2.    do not exhibit antibiotic resistance
  3.    carry transfer genes called the tra genes
  4.    do not carry transfer genes
 Discuss Question
Answer: Option C. -> carry transfer genes called the tra genes
Question 75. . Charon 34 and Charon 35 can clone DNA upto
  1.    1-2 kb
  2.    6-7 kb
  3.    9-20 kb
  4.    30-35 kb
 Discuss Question
Answer: Option C. -> 9-20 kb
Question 76. . Charon vectors are different from EMBL vectors because
  1.    they have more extensive range of restriction targets with in their polylinkers.
  2.    physical separation of lambda arm from central fragment is required
  3.    both (a) and (b)
  4.    physical separation of lambda arm from central fragment is not required
 Discuss Question
Answer: Option C. -> both (a) and (b)
Question 77. . P1 cloning vector is the example of
  1.    plasmid
  2.    cosmid
  3.    bacteriophage
  4.    phagemid
 Discuss Question
Answer: Option C. -> bacteriophage
Question 78. . Phagemid vectors are
  1.    combination of plasmid and phage λ
  2.    combination of phages and cosmid
  3.    phages carrying properties of plasmids
  4.    all of the above
 Discuss Question
Answer: Option A. -> combination of plasmid and phage λ
Question 79. . M 13 is an example of
  1.    filamentous phage
  2.    single stranded DNA vector
  3.    both (a) and (b)
  4.    plasmid
 Discuss Question
Answer: Option C. -> both (a) and (b)
Question 80. . Cos site of the cosmids
  1.    consists of 12 bases
  2.    helps whole genome in circularization and ligation
  3.    both (a) and (b)
  4.    contains cleavage site
 Discuss Question
Answer: Option C. -> both (a) and (b)

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