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Transcript
Prokaryotes in general Archeabacteria Archaea are similar to Eukaryotic Cells They both have several kinds of RNA Polymerase. The initiator to start photosynthesis is Methionine in both. Introns can be seen in both. DNA associated Histones are present Ribosomal protein is similar. Cell wall does not have peptidoglycogen like bacteria cell wall Prokaryote continued Bacteria Virus attacking a cell: are they alive? Bacteria in the small intestine Bacteria No nuclear envelope No membrane enclose organelles Cell wall made of peptidoglycogen One kind of RNA polymerase No introns present No histones associated with DNA Circular Chromosomes Bacteria Shapes Cocci: Shaped like a sphere Bacillus: Shaped like a rod Spirillus: Shaped like a spiral Euglenophyta Chlorophyta Alveolates Stramenopiles Amoebozoans Ways to Classify Phylogeny: details the evolutionary history of the taxon and details relationships that exist Cladistics: evolutionary branches Phenetics: uses only measurable similarities and differences Classical Evolutionary Systematics: uses all approaches Darwin’s systematics uses his idea: Descent with modification not survival of the fittest Textbook Action Please read pages 526-528 and 535537 on the classification of life…pay particular attention to Table 27.2. Also read pages 545-554 on protists and the phylogeny of eukaryotes. Figures help… You may construct a concept map or any other graphic organizer to help you. This will be handed in tomorrow. Continuity and Change Lab