Table 7-1. Comparison of genome sizes inseekaathndiruSize(kbp)OrganismProkaryotesArchae1660Methanococusjannaschi2180Archaeoglobus fulgidus580EubacteraMycoplasma genitalium820Mycoplasmapneumonide910Boreliaburgdoreri1040Chiamydia tachomatis1110Ricktsi prowazeki1140Treponema palldum1230Chiamyiapneumoniae1670Heliobacter pyori1830Hdemophilusinfuenzae2180Neiseria meningitidisserogroupA2270Nesria meningidisserogroup B4210Bacils sutlis4410Mycobacterum tuberculosis4640Escherichia oli48LambdaBacteriophageVariola186Viruses192Vaccinia229CytomegalovirusSHIHEZIUNIVERSITY
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Features of Plasmid Circular dsDNA<100kbGenetic infoGenes essential for bacterial growth are carriedon the chromosome, and plasmids carry genesassociated with specialized functionsRemoval / transferred Types: R, F, ViSHIHEZIUNIVERSITY
Features of Plasmid Circular dsDNA <100kb Genetic info Genes essential for bacterial growth are carried on the chromosome, and plasmids carry genes associated with specialized functions Removal / transferred Types: R, F, Vi . . . SHIHEZI UNIVERSITY
Table7-2.Examplesof metabolicactivitiesdetermined by plasmids.ActivityOrganismPseudomonaspeciesDegradation of camphortoluene,octane,salicylic acidBacilsstearothermophilusα-AmylaseAlcaligenes eutrophusUtilizationofHasoxidizabeenergy sourceEscherichia oliSucrose uptake andmetabolism,citrate uptakeKlesiellaspeciesNitrogen fixationStreptococcus (group N)Lactose utilization,galatose phosphotransferasesystem,citrate metabolismRhodosprilum rubrumSynthesis of photosyntheticpigmentFlavobacterium speciesNylon degradationSHIHEZIUNIVERSITY
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Plasmids Definition: Extrachromosomal geneticelements that are capable of autonomousreplication (replicon)Episome - a plasmid that can integrate intothe chromosomeSHIHEZIUNIVERSITY
Plasmids Definition: Extrachromosomal genetic elements that are capable of autonomous replication (replicon) Episome - a plasmid that can integrate into the chromosome SHIHEZI UNIVERSITY
Classification of Plasmids Transfer propertiesConjugativeNonconjugative Phenotypic effectsFertilityBacteriocinogenic plasmidResistance plasmid (R factorsSHIHEZI UNIVERSITY
Classification of Plasmids Transfer properties Conjugative Nonconjugative Phenotypic effects Fertility Bacteriocinogenic plasmid Resistance plasmid (R factors) SHIHEZI UNIVERSITY