BIOL 2200 Chapter Notes - Chapter 26: Binomial Nomenclature, Branch Point, Convergent Evolution
10 Feb 2017
School
Department
Course
Professor
Document Summary
Chapter 26: phylogeny and the tree of life. Phylogeny evolutionary history of a species or a group of species. Systematics how biologists use phylogeny to classify organisms and determine their evolutionary relationships. Taxonomy the science of how organisms are named and classified. Binomial nomenclature: created by carolus linnaes, 2 part (cid:374)a(cid:373)e (cid:449)hich gi(cid:448)es a(cid:374) orga(cid:374)is(cid:373)"s ge(cid:374)us a(cid:374)d species. Hierarchal classification: species -> genus -> family -> orders -> classes -> phyla -> kingdoms -> domains, taxon . For a leopard, panthera is a taxon at the genus level. Evolutionary relationships among the taxa are not yet clear. Infer species identities by analyzing the relatedness of dna sequences of different organisms. 26. 2 phylogenies are inferred from morphological and molecular data. Morphological and molecular homologies: morphological homology example. The similarity in the number/structure of bones in forelimbs of mammals: organisms with similar morphological features or similar dna sequences are more likely to be closely related.
