By Edward A. Birge

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Benjamin. Wickner, S. 1978. DNA replication pro teins of E. eoli. Annual Review of Biochemistry 47: 1163-1191. , Lecatsas, G. 1979. Genetic recombination in fused spheroplasts of Providenee alealifaciens. Journal of General Microbiology 114: 313-322. E. 1966. A proposal for a uniform nomenclature in bacterial genetics. Genetics 54:61-76. D. 1979. The cell cycle of E. eoli, pp. 11-35. H. ) Developmental Biology of Prokaryotes. Berkeley and Los Angeles: University of California Press. M. 1979. Factors affecting recombinant frequency in protoplast fusions of Streptomyees eoelieolor.

It is likely that their status will be clarified within the next few years. The first process is one called capsduction. Although it may occur in several organisms, it has been best studied in Rhodopseudomonas capsulatum, primarily by Marrs' group. The overall features of the process resemble generalized transduction except that, although phagelike partieles can be observed, none of the strains capable of undergoing capsduction show any sign of viable bacteriophage production. 5 kilobases of DNA, which is entirely, or almost so, bacterial DNA.

Summary Bacteria are unique in their prokaryotic cellular organization. They are haploid organisms possessing a single circular DNA molecule, which is generally present in a partially replicated state. Segregation of DNA molecules is via membrane growth rather than mitosis or meiosis. Although bacteria carry out the usual molecular biological processes for macromolecular synthesis, the processes differ in detail from those of eukaryotic organisms. The DNA is organized into a structure called a genophore or nucleoid rather than a true chromosome.

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Bacterial and Bacteriophage Genetics: An Introduction by Edward A. Birge
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