Sail E0 Webinar

MCQs

Total Questions : 116 | Page 7 of 12 pages
Question 61. Recombinant plasmids are added to a bacterial culture that has been pretreated with _________________ ions.
  1.    iodine
  2.    magnesium
  3.    calcium
  4.    ferric
 Discuss Question
Answer: Option C. -> calcium
Answer: (c).calcium
Question 62. Taq polymerase is a ________________________ polymerase.
  1.    heat-stable
  2.    buffering
  3.    denaturant
  4.    large
 Discuss Question
Answer: Option A. -> heat-stable
Answer: (a).heat-stable
Question 63. Bacteriophage Lambda is a major cloning vector.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 64. The temperature cycles in a polymerase chain reaction are in the order __________________
  1.    95°, 60°, 72°
  2.    60°, 72°, 95°
  3.    72°, 60°, 95°
  4.    95°, 72°, 60°
 Discuss Question
Answer: Option A. -> 95°, 60°, 72°
Answer: (a).95°, 60°, 72°
Question 65. Polymerase chain reaction (PCR) was invented by ______________________
  1.    Kary Mullis
  2.    James Watson
  3.    John Hopkins
  4.    Hargobind Khorana
 Discuss Question
Answer: Option A. -> Kary Mullis
Answer: (a).Kary Mullis
Question 66. Which enzyme is active at 72° in the polymerase chain reaction?
  1.    isomerase
  2.    exonuclease
  3.    polymerase
  4.    endonuclease
 Discuss Question
Answer: Option C. -> polymerase
Answer: (c).polymerase
Question 67. When was the nucleotide sequence of a viral genome first elucidated?
  1.    1977
  2.    1988
  3.    1999
  4.    2002
 Discuss Question
Answer: Option A. -> 1977
Answer: (a).1977
Question 68. PCR can generate large amounts of DNA.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 69. DNA libraries are collection of ______________________
  1.    ribonucleic acid
  2.    cloned DNA fragments
  3.    bacteriophages
  4.    viral particles
 Discuss Question
Answer: Option B. -> cloned DNA fragments
Answer: (b).cloned DNA fragments
Question 70. Molecular beacons are short ____________________
  1.    polysaccarides
  2.    monosaccharides
  3.    oligonucleotides
  4.    phospholipids
 Discuss Question
Answer: Option C. -> oligonucleotides
Answer: (c).oligonucleotides

Latest Videos

Latest Test Papers