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Unformatted text preview: Phylogeny reveals history of descent. Phylogenies are extended pedigrees. Similarity and common ancestry. BIOEE 2780 Lecture 4 2 Characters and character states. Need to define in order to carry out formal analysis of variation. Character is an attribute of organisms – in all of its modifications. Character state is form of a character in a particular individual. Eye color; shell color, banding. Similarity and common ancestry. Does more similar imply more closely related? Types of similarity. Homology Homoplasy Symplesiomorphy versus synapomorphy The significance of autapomorphies. Worked examples: see Figures 2.5 and 2.8 in Futuyma....
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This note was uploaded on 02/04/2010 for the course BIOEE 2780 taught by Professor Geber during the Fall '07 term at Cornell.
- Fall '07