3813-002Day6Posted - M B IO 3 8 1 3 - 0 0 2 Day 6 Fri...

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1 MBIO 3813-002 Day 6 Fri 9/2/11 Cycles of Elements in Nature, reminder Machine and Information Functions, “ Three Domains Characterizing Microbial Cell Genomics Microscopy, Biochem, Physiol COMMERCIAL BREAK • NPR Science Friday Today (9/2) 106.3 FM (or npr.org): Black Death Bacterium • The Ghost Map : be reading it as informed reader • Fig 3.1: components of Gram-neg cell to scale C N S P O 2 Fe,… The Microbial Family Tree ( cf. Figs 1.5, 1.8)
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2 Three Domain System • Proposal first based on 16S (Bact, Archaea) or 18S (Euk) rRNA seq (100 to 1000 n’tides) • Domains consistent with many biochem prop. • With many complete genome sequences, the Domain system is well-supported by many gene sequences • With that said, Horizontal Gene Transfer occurs - genomes are mosaics (some Arch, Bact, Euk gene relatives found in each Domain’s genomes) Three Domain System, cont’d.
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3813-002Day6Posted - M B IO 3 8 1 3 - 0 0 2 Day 6 Fri...

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