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Total Questions : 90 | Page 6 of 9 pages
Question 51. RNA structures can be experimentally determined using _____
  1.    X-ray crystallography techniques only
  2.    NMR techniques only
  3.    X-ray crystallography or NMR techniques
  4.    Gel electrophoresis
 Discuss Question
Answer: Option C. -> X-ray crystallography or NMR techniques
Answer: (c).X-ray crystallography or NMR techniques
Question 52. Which of the following is not a form of RNA?
  1.    mRNA
  2.    tRNA
  3.    qRNA
  4.    rRNA
 Discuss Question
Answer: Option C. -> qRNA
Answer: (c).qRNA
Question 53. Which of the following is not a base of RNA?
  1.    Thymine (T)
  2.    Adenine (A)
  3.    Cytosine (C)
  4.    Guanine (G)
 Discuss Question
Answer: Option A. -> Thymine (T)
Answer: (a).Thymine (T)
Question 54. Structures are not much important when it comes to the study of the functions.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 55. Unlike DNA, which is mainly double stranded, RNA is double stranded, although an RNA molecule can self-hybridize at certain regions to form partial double-stranded structures.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 56. Which of the following is incorrect about the RNA structure prediction?
  1.    Given the sequence, it provides an ab initio prediction of secondary structure
  2.    From the many possible choices of complementary sequences that can potentially base-pair, the compatible sets that provide the highest energy molecules are chosen
  3.    Structures with energies almost as stable as the most stable one may also be produced
  4.    Regions whose predictions are the most reliable can be identified from such an analysis
 Discuss Question
Answer: Option B. -> From the many possible choices of complementary sequences that can potentially base-pair, the compatible sets that provide the highest energy molecules are chosen
Answer: (b).From the many possible choices of complementary sequences that can potentially base-pair, the compatible sets that provide the highest energy molecules are chosen
Question 57. RNA secondary structure is composed primarily of triple-stranded RNA regions formed by folding the single-stranded molecule back twice on itself.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 58. A type of RNA secondary structure prediction method takes into account conserved patterns of base-pairing that are conserved during evolution of a given class of RNA molecules.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 59. ____ wobble pairs may be produced in these double-stranded regions.
  1.    A/A
  2.    A/U
  3.    G/C
  4.    G/U
 Discuss Question
Answer: Option D. -> G/U
Answer: (d).G/U
Question 60. In predicting RNA secondary structure, some simplifying assumptions are usually made, like the _____ structure is similar to the _____
  1.    most likely, energetically most unstable structure
  2.    most unlikely, energetically most stable structure
  3.    most likely, energetically most stable structure
  4.    least likely, energetically most stable structure
 Discuss Question
Answer: Option C. -> most likely, energetically most stable structure
Answer: (c).most likely, energetically most stable structure

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