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OEB 192 – 08.09.24 “Evolutionary speculation constitutes a kind of metascience, which has the same intellectual fascination for some biologists that metaphysical speculation possessed for some mediaeval scholastics. It can be considered a relatively harmless habit, like eating peanuts, unless it assumes the form of an obsession; then it becomes a vice” (Stanier, 1970)
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Linnaean classification Two major characteristics KingdomAnimalia PhylumChordata ClassMammalia OrderPrimates FamilyHominidae Genus Homo Speciessapiens
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Tree of Life: primary divisions
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Tree of Life: three “domains” Based on 16S rRNA (Woese, 1987):
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Tree of Life: three “domains” Based on 16S rRNA (Pace, 1997):
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Tree basics: meaning
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Tree basics: rotation
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Tree basics: shape
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Tree basics: lengths, unrooted cladograms vs. phylograms
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Tree basics: character change
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Key phylogenetic terms
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Monday (9/29): Molecular evolution and horizontal gene transfer I. p.s.- No office hours today after class...
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Upcoming talks in microbial evolution… Wednesday, 9/24 Marx & Girguis labs open house 6:30 – 8 pm, 3081 Biolabs All are welcome to come enjoy a beer and snacks and learn about work in our labs…
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