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The Mechanism of Competence for DNA Uptake and Transformation in Pneumococcihis, concerned mainly with higher plants. The reason for discussing an aspect of bacterial transformation is that in bacteria considerable amount of information is available about the mechanism of DNA uptake in phenomena leading to genetic change and a brief review of this topic in pneumococci could不要严酷 发表于 2025-3-29 02:22:50
Integrated and Free State of Plasmidsaining all of the essential genes of the cell. Recently however one has realized that many bacteria in fact contain one or more additional DNA structures usually carrying so called facultative genes that are only essential to the cell’s survival under particular circumstances (e.g. antibioticum resi共同时代 发表于 2025-3-29 03:36:18
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The Enzymology of Nitrogen Fixation. It is the step in the nitrogen cycle which compensates for a loss of fixed nitrogen to the atmosphere caused by microbial reduction of the nitrate ion; the complete nitrogen cycle can be represented in many forms such as that below:相信 发表于 2025-3-29 15:09:29
The Physiology and Genetics of Nitrogen Fixationnd have permitted rapid advances in the study of the genetics of nitrogen fixation. These developments have stemmed partly from the practical value of the acetylene test and partly from the recognition of the metalloenzyme character of nitrogenase, its extreme oxygen sensitivity and its apparent wasAblation 发表于 2025-3-29 16:35:53
Molecular Biology of the Genus ,d an answer such as: What are the relationships (homology) between the genomes of the individual strains in a genus ? how homogeneous or heterogeneous are the molecular weights and base compositions of the genome DNA ? is a bacteriological species a genetically homogeneous group of strains ? what arFacet-Joints 发表于 2025-3-29 19:54:48
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