Phylogenetics Basics MCQ

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• Molecular clock is an assumption by which molecular sequences evolve at varying rates.
  ক

  True

  খ

  False
• Because there is no indication of which node represents an ancestor, there is no direction of an evolutionary path in an unrooted tree.
  ক

  True

  খ

  False
• Which of the following is incorrect regarding the terminologies of phylogenetics?
  ক

  The connecting point where two adjacent branches join is called a node

  খ

  Node represents an inferred ancestor of extant taxa

  গ

  At the tips of the branches are long lost species or sequences

  ঘ

  The lines in the tree are called branches
• Building phylogenetic tree involves bifurcation and multifurcation.
  ক

  True

  খ

  False
• To use molecular data to reconstruct evolutionary history requires making a number of reasonable assumptions. Which of the following is incorrect about it?
  ক

  The molecular sequences used in phylogenetic construction are homologous

  খ

  The molecular sequences used in phylogenetic construction share a common origin

  গ

  Phylogenetic divergence cannot be bifurcating

  ঘ

  Parent branch splits into two daughter branches at any given point
• Which of the following is incorrect regarding the advantages of Molecular data for phylogenetics study?
  ক

  They are more numerous than fossil records

  খ

  They are easier to obtain as compared to fossil records

  গ

  Sampling bias is involved

  ঘ

  More clear-cut and robust phylogenetic trees can be constructed with the molecular data
• The descriptions of morphological traits are often _____ which are due to _____
  ক

  ambiguous, multiple genetic factors

  খ

  lucid, more than one genetic factors

  গ

  clear, multiple genetic factors

  ঘ

  ambiguous, one or two genetic factors
• Phylogenetics is the study of the evolutionary history of living organisms using treelike diagrams to represent pedigrees of these organisms.
  ক

  True

  খ

  False