Lecture 9 - TOL and Classification

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9 Terms

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Phylogeny

Evolutionary relationships represented by a branching diagram

  • tends to focus on similarities among organisms

<p>Evolutionary relationships represented by a branching diagram </p><ul><li><p>tends to focus on similarities among organisms </p></li></ul><p></p>
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Phylogenetic reconstruction

the method of organizing the extraordinary diversity of life in a evolutionary framework

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Derived features, homology

Shared features due to sharing a common ancestor

  • often similar to one another

  • informative about evolutionary relationships

<p>Shared features due to sharing a common ancestor </p><ul><li><p>often similar to one another </p></li><li><p>informative about evolutionary relationships</p></li></ul><p></p>
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Analogy, homoplasy

features that are similar but NOT due to common ancestry

  • EX: bird wings and bat wings

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Phylogenetic patterns can be represented in what 2 ways?

Cladogram or Evolutionary Tree

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