No abstract available
MeSH terms
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Amines
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Centrifugation, Density Gradient
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Cesium
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Chromosomes, Bacterial
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DNA, Bacterial* / analysis
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DNA, Bacterial* / biosynthesis
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DNA, Circular* / analysis
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DNA, Circular* / biosynthesis
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Ethidium
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Extrachromosomal Inheritance
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Microscopy, Electron
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Mitomycins / pharmacology
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Molecular Weight
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Phenanthridines
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Plant Tumors
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Rhizobium* / metabolism
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Sucrose
Substances
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Amines
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DNA, Bacterial
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DNA, Circular
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Mitomycins
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Phenanthridines
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Cesium
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Sucrose
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Ethidium