BIOL359 Lecture Notes - Lecture 7: Parallel Evolution, Evolutionary Taxonomy, Coevolution
19 Apr 2018
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180 degree rotation does not change the phylogenetic hypothesis phylogenetic characters - any attribute of an organism that can provide us with. Phylogenies can be based on morphological data, physiological data, molecular. Plesiomorphy: refers to the ancestral character state that is the same. Apomorphy: a character state different than the ancestral state, or derived bifurcation (cid:1680) when the ancestors split into two branches polytomy (cid:1680) when the ancestors split into more than one branch. Topic 7: phylogeny data or all three insights into history i. e. nucleotide positions. Topic 7: phylogeny sometimes, the characters have evolved independently but are shared by the these taxa do come from the same ancestor taxa that did not descend from the same ancestors (cid:1680) called homoplasy. Ways homoplasy can occurs: problems with this: polyphyletic classification occurs. Homology can result in analogy: ancestors (cid:1680) i. e. whales and sharks.
