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Unformatted text preview: Disease Spirochetes Lyme disease, syphilis Rickettsia-rod-shaped Rocky mountain, spotted fever streptococci Bacteria vs. Archaea Structural characteristics Bacteria Archaea Nuclear envelope Absent absent Membrane-enclosed organelles Absent Absent Circular chromosome present Present Histones associated w/DNA Absent Present Peptidoglycan in cell wall present Absent Structure of lipids in plasma membrane straight-chain fatty acids bonded to glycerol by ester linkages Branched-chain hydrocarbons linked to glycerol by ester linkages...
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- Fall '08