4 - Primates • Similarities reflect a common phylogeny o...

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Modern Synthesis Macroevolution = change and speciation Microevolution = change but no speciation Speciation o Phyletic gradualism (slow) o Puncuated gradualism (quick) Our Genes Gregor Mendel (1822 – 1884) o Botanist who studied inheritance (dominant and recessive genes) o Mendel’s Law of Independent Assortment: Traits are inherited independent of one-another Other Kinds of Selection Directional selection: o Long term selection of the same traits Sexual selection Genetic drift: o Change in allele frequencies that results by chance
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Unformatted text preview: Primates • Similarities reflect a common phylogeny: o Homologies = common features from same ancestors (nails) o Analogies = common features evolved independently (wings) • Primate traits: o Grasping hands and feet o Rotatable shoulders o Dependence on sight o Complex brain o Sense of touch o Parental investment o Sociality • Taxonomy: o Linnaean: Kingdom Phylum Class Order Family Genus Species o Cladistic: Superfamily Family Subfamily Tribe...
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