Cladistics and Phylogenetics Quiz
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Questions and Answers

What defines a derived character in cladistics?

  • It is an ancient feature common to all species.
  • It is present in at least two species inherited from their most recent common ancestor. (correct)
  • It is not present in the most recent common ancestor.
  • It is present in all descendants of an ancestor.
  • Which term describes characters that are similar due to shared ancestry?

  • Homology (correct)
  • Polyphyly
  • Synapomorphy
  • Homoplasy
  • What is the principle of parsimony based on?

  • Maximum evolutionary changes.
  • Minimum number of transitions. (correct)
  • Total length of evolutionary trees.
  • Maximum likelihood and data accuracy.
  • Which group contains some but not all descendants of a common ancestor?

    <p>Paraphyletic group</p> Signup and view all the answers

    What is a crown group in phylogeny?

    <p>All descendants of the last common ancestor.</p> Signup and view all the answers

    What indicates a synapomorphy?

    <p>A derived trait shared by multiple species.</p> Signup and view all the answers

    Which of the following is an example of homoplasy?

    <p>The presence of wings in birds and bats.</p> Signup and view all the answers

    Which method is NOT typically part of cladistic analysis?

    <p>Minimum variance estimation.</p> Signup and view all the answers

    What does the concept of a sister group refer to?

    <p>Two taxa that have an immediate common ancestor.</p> Signup and view all the answers

    Which of the following statements is true regarding outgroups?

    <p>Outgroups help determine the primitive traits of a study group.</p> Signup and view all the answers

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