Maximum Parsimony in Molecular Systematics
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Questions and Answers

According to maximum parsimony, what is the most likely tree?

  • The tree that requires the most evolutionary events
  • The tree that requires the fewest evolutionary events (correct)
  • The tree that requires the fewest shared derived characters
  • The tree that requires the most shared derived characters

    • What do all phylogenetic trees represent?

  • The order in which organisms evolved
  • Facts about how organisms are related to each other
  • Hypotheses about how organisms are related to each other (correct)
  • The true evolutionary history of organisms

    • What is the best hypothesis in phylogenetics?

  • The one that best fits all available morphological, molecular, and fossil data (correct)
  • The one that fits all available molecular data
  • The one that fits all available morphological data
  • The one that fits all available fossil data

    • What does Figure 20.16 depict?

    <p>A phylogenetic tree of birds and their close relatives</p> Signup and view all the answers

    What does Figure 20.18 provide support for?

    <p>The idea that dinosaurs built nests and brooded their eggs</p> Signup and view all the answers

    What is shown in the fossil remains of Oviraptor and eggs?

    <p>The orientation of the bones surrounding and covering the eggs</p> Signup and view all the answers

    What is the purpose of applying parsimony in molecular systematics?

    <p>To find the tree that requires the fewest evolutionary events</p> Signup and view all the answers

    What type of data does the best hypothesis in phylogenetics fit?

    <p>All of the above</p> Signup and view all the answers

    What does maximum parsimony assume about the most likely tree?

    <p>It requires the fewest evolutionary events</p> Signup and view all the answers

    What does a phylogenetic tree represent?

    <p>Hypotheses about how organisms are related to each other</p> Signup and view all the answers

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