V S Safarian

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Temperature-independent deletion mutants of temperature-sensitive in self-maintenance plasmid pEG-1, derived from R-factor RP4, are mapped using the restriction endonucleases PstI, SmaI, EcoRI, BamHI and the heteroduplex analysis. The pEG1 derivatives under study are found to have deletions in the area of ampicillin transposon Tn1 and nearby genes. The left(More)
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