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MCQs

Total Questions : 100 | Page 2 of 10 pages
Question 11. Which of the following is untrue regarding TREE-PUZZLE?
  1.    The resulting puzzle trees are automatically assigned puzzle support values to internal branches
  2.    The support values are percentages of consistent quartet trees
  3.    The support values do not have the same meaning as bootstrap values
  4.    The support values have the same meaning as bootstrap values
 Discuss Question
Answer: Option D. -> The support values have the same meaning as bootstrap values
Answer: (d).The support values have the same meaning as bootstrap values
Question 12. PHYML is a web-based _______ program using the _____
  1.    phylogenetic, GA (Genetic Algorithm)
  2.    sequence based alignment, GA (Genetic Algorithm)
  3.    phylogenetic, dynamic programming
  4.    sequence based alignment, dynamic programming
 Discuss Question
Answer: Option A. -> phylogenetic, GA (Genetic Algorithm)
Answer: (a).phylogenetic, GA (Genetic Algorithm)
Question 13. MrBayes has a range of probabilistic models available to search for a set of trees with the lowest posterior probability.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 14. MrBayes is a Bayesian phylogenetic inference program.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 15. In PHYML, The tree searching _____ when the total ML score no longer ______
  1.    ceases, increases
  2.    stops, decreases
  3.    terminates, decreases
  4.    stops, increases
 Discuss Question
Answer: Option D. -> stops, increases
Answer: (d).stops, increases
Question 16. Which of the following is wrong statement about the maximum likelihood approach?
  1.    This method doesn’t always involve probability calculations
  2.    It finds a tree that best accounts for the variation in a set of sequences
  3.    The method is similar to the maximum parsimony method
  4.    The analysis is performed on each column of a multiple sequence alignment
 Discuss Question
Answer: Option A. -> This method doesn’t always involve probability calculations
Answer: (a).This method doesn’t always involve probability calculations
Question 17. The maximum likelihood method can be used to explore relationships among more diverse sequences, conditions that are not well handled by maximum parsimony methods.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 18. The main disadvantage of maximum likelihood methods is that they are _____
  1.    mathematically less folded
  2.    mathematically less complex
  3.    computationally lucid
  4.    computationally intense
 Discuss Question
Answer: Option D. -> computationally intense
Answer: (d).computationally intense
Question 19. Maximum likelihood has also been used for an analysis of mutations in overlapping reading frames in viruses.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 20. In about the maximum likelihood approach, for each tree, the number of sequence changes or mutations that may have occurred to give the sequence variation is considered.
  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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