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MCQs

Total Questions : 100 | Page 7 of 10 pages
Question 61. When the number of taxa exceeds twenty, even the branch-and-bound method becomes computationally unfeasible.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 62. Which of the following is incorrect statement about branch-and-bound?
  1.    It uses a shortcut to find an MP tree
  2.    It establishes an upper limit (or upper bound) for the number of allowed sequence variations
  3.    It solely uses UPGMA method
  4.    It starts by building a distance tree for all taxa involved
 Discuss Question
Answer: Option C. -> It solely uses UPGMA method
Answer: (c).It solely uses UPGMA method
Question 63. In a heuristic tree search, only a small subset of all possible trees is examined.
  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. Which of the following is incorrect statement about Tree-Searching Methods?
  1.    The choice of the first three taxa can be random
  2.    Parsimony method examines all possible tree topologies to find the maximally parsimonious tree
  3.    It starts by building a three taxa unrooted tree, for which only one topology is available
  4.    This is different than exhaustive search method
 Discuss Question
Answer: Option D. -> This is different than exhaustive search method
Answer: (d).This is different than exhaustive search method
Question 65. The branch-and-bound method starts building trees in a similar way as in the exhaustive method.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 66. PAUP is a Macintosh program (UNIX version available in the GCG package) with a very user-friendly graphical interface.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 67. In PAUP, the distance options include NJ, ME, FM, and UPGMA.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 68. Which of the following is untrue regarding TREE-PUZZLE?
  1.    It is a program performing quartet puzzling
  2.    It allows various substitution models for likelihood score estimation
  3.    It doesn’t incorporate a discrete γ model
  4.    Because of the heuristic nature of the program, it allows ML analyses of large datasets
 Discuss Question
Answer: Option C. -> It doesn’t incorporate a discrete γ model
Answer: (c).It doesn’t incorporate a discrete γ model
Question 69. Phylip stands for Phylogenetic inference package (by Joe Felsenstein).
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 70. In PAUP, to complete an analysis the user is not required to move between different subprograms while keeping modifying names of the intermediate output files.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True

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