Chapters1011 - 11/22/10 Textbook Readings Chapters 10 & 11...

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11/22/10 1 Classification Textbook Readings Chapter 10: read through p. 289 Chapter 11: Look at all pictures to see bacterial diversity; skim text Purpose of Classification Taxonomy (classification) organizes living things in groups to aid identification and reflect evolution Historical Groupings Aristotle, Linnaeus, and up to 1900’s => Two kingdoms, Plantae and Animalia By 1969, three kingdoms added Fungi, Protists, Prokaryotes Modern Groupings Now we can sequence DNA and the RNA in ribosomes; this info leads to => Three Domains (Woese, 1978) Bacteria, Archaea, Eukarya (Eukarya has four kingdoms) Evolution Prokaryotes were first Bacteria and Archaea split early Eukaryotic cells probably became nucleated first and then acquired symbiotic partners bacteria that became mitochondria and chloroplasts Endosymbiosis
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11/22/10 2 Evidence of Endosymbiosis Mitochondria and chloroplasts are the size of prokaryotes (1 – 10 mcm), and: Reproduce by binary fission Have their own circular DNA Make proteins on their own ribosomes
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This note was uploaded on 04/18/2011 for the course MICR 130 taught by Professor Umemoto during the Fall '09 term at University of Hawaii, Manoa.

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Chapters1011 - 11/22/10 Textbook Readings Chapters 10 & 11...

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