Structure of R Factors■RTFRTFConjugativeTn10plasmid Transfer genes2R determinantCResistance genesgu6uiTransposonsR determinantSHIHEZI UNIVERSITY
Structure of R Factors RTF Conjugative plasmid Transfer genes R determinant Resistance genes Transposons Tn 9 Tn 21 Tn 10 Tn 8 RTF R determinant SHIHEZI UNIVERSITY
Bacteriophage, Phageviruses associated with prokaryotesSyringe-like structure (ortadpole-likeCopyricht e2001Dennis KSHIHEZI UNIVERSITY
Bacteriophage, Phage viruses associated with prokaryotes Syringe-like structure (or tadpole-like) SHIHEZI UNIVERSITY
Bacteriophage (Phage)Definition - Obligate intracellular parasites thatmultiply inside bacteria by making use of some orall of the host biosynthetic machinery Significance Models for animal cell virusesGene transfer in bacteriaMedical applications Identification of bacteria - phage typingTreatment and prophylaxsis???SHIHEZI UNIVERSITY
Bacteriophage (Phage) Definition - Obligate intracellular parasites that multiply inside bacteria by making use of some or all of the host biosynthetic machinery Significance Models for animal cell viruses Gene transfer in bacteria Medical applications Identification of bacteria - phage typing Treatment and prophylaxsis??? SHIHEZI UNIVERSITY
Page T2Head (nucleicEmptyacid present)headHollow coreSheath(contracted)Sheath(expanded)TailfiberBase plateFigure7-4.DiagramsofphageT2basedonelectronmicrographic observationSHIHEZIUNIVERSITY
Page T2 SHIHEZI UNIVERSITY
Bacteriophage StructurePhage StructureHeadDNA- Head-Core: DNA or RNA-InternalProteinsNeck-Protein coat TailTailSheath31 Protein.0TailFibersEndPinsPlateFigure 1SHIHEZI UNIVERSITY
Phage Structure Head Core: DNA or RNA Protein coat Tail Protein SHIHEZI UNIVERSITY