Prokaryotic comparative
genomics
approximately 30 microbial genomes sequenced,
including E Coli and Bacillus subtilis, H pylori,
Chlamydia, TB, Borrelia, and several archaeal
organisms--0.8-4.6 MB
40% unknown genes; 25% unique and unknown
number of genes associated with e.g. transcription
and translation is constant; numbers for
biosynthesis of amino acids, energy metabolism,
transporters is quite variable
larger genomes contain many paralogs