细菌和噬菌体遗传.ppt

H thr 1 thi gly his gal 3 pur lac pro 2 AB312 0 thr pro lac pur gal his gly thi 0 thr thi gly his gal pur lac pro 0 pro thr thi gly his gal pur lac 0 pur lac pro thr thi gly his gal 0 thi thr pro lac pur gal his gly H 1 2 3 AB312 5.1 Plasmid patterns 质粒类型 5.2 Transfer of genes between bacteria 细菌间基因的传递 5.2.1 Transfer by conjugation ( 结合传递) 5.2.2 Three transfer types (F+, F-, Hfr, F’ cells) 5.2.3 Interrupted mating experiment – 中断杂交技术 5.3 Transfer of genes between bacterium and bacterial viruses 细菌与噬菌体间基因的传递 5.3.1 Bacteriophage and its properties 5.3.2 Generalized transduction (普通转导) 5.3.3 Specialized transduction (特定转导) 5.3.4 Recombination in bacteria Chapter 5 Genetic Analysis in Bacteria and Bacteriophages 第五章 细菌与噬菌体遗传 5.3.1 Bacteriophage and its properties Phages can be divided into two classes: virulent or temperate depending on how they behave after infection of a bacterium. when a virulent phage infects a bacterium it takes over the synthetic machinery of the host and uses it as a factory for the production of new phages. 5.3 Transfer of genes between bacterium and bacterial viruses * * Genetic Analysis in Bacteria and Bacteriophages 细菌与噬菌体遗传 structure of bacterial genomes mechanisms by which bacteria transfer genes between cells of the same species mechanisms by which bacteria transfer genes between bacterial cells and bacterial viruses Geneticists can use their knowledge of bacterial genetics in general and of various forms of bacterial gene transfer in particular to identify, map, and characterize the genes that contribute to biological process. 5.1 Plasmid patterns