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Biology  /  Bio 1813  ·  Procedure · 60–90 seconds

Building a Phylogenetic Tree from Shared Derived Characters

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This procedure builds one small phylogenetic tree from a table of shared traits, applying homology, clade structure, and maximum parsimony together.

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Counting a trait's presence across species is only the first step — sorting which traits are shared-derived versus shared-ancestral for this particular group is what actually builds the tree's structure.