The nature of the genetic determinant for the SHV-1 β-lactamase M. E. NugentR. W. Hedges OriginalPaper Pages: 239 - 243
Loss of rac locus DNA in merozygotes of Escherichia coli K12 Richard EvansNeil R. SeeleyPeter L. Kuempel OriginalPaper Pages: 245 - 250
Altered chemical properties in three mutants of E. coli RNA polymerase sigma subunit Richard R. BurgessCarol A. GrossPeter A. Lowe OriginalPaper Pages: 251 - 257
Abolition of the cyclic variations in radiosensitivity during meiosis in a sporulation mutant blocked in premeiotic DNA synthesis H. Hottinguer-De MargerieE. Moustacchi OriginalPaper Pages: 259 - 265
Dissection of the transposition process: A transposon-encoded site-specific recombination system Avril ArthurDavid Sherratt OriginalPaper Pages: 267 - 274
A novel priming system for conjugal synthesis of an IncIα plasmid in recipients Graham J. BoulnoisBrian M. Wilkins OriginalPaper Pages: 275 - 279
Evidence for a common cytoplasmic determinant of longevity and senescence in the ascomycete Podospora anserina Alain Raynal OriginalPaper Pages: 281 - 292
Unstable ascospore color mutants of Ascobolus immersus G. RizetC. LefortA. Kouassi OriginalPaper Pages: 293 - 303
Natural premature protein synthesis termination can be reduced in Escherichia coli by decreased translation rates Alan G. Atherly OriginalPaper Pages: 305 - 311
A cold-sensitive mutant of Saccharomyces cerevisiae defective in ribosome processing Doris UrsicJulian Davies OriginalPaper Pages: 313 - 323
Outer membrane protein a and other polypeptides regulate capsular polysaccharide synthesis in E. coli K-12 Randall C. GaydaHanna AvniAlvin Markovitz OriginalPaper Pages: 325 - 332
Localization of the dihydrofolate reductase gene on the physical map of bacteriophage T5 Gabriele PeterUrs J. HänggiHans G. Zachau OriginalPaper Pages: 333 - 341
Plasmid cistrons controlling synthesis and excretion of the exotoxin α-haemolysin of Escherichia coli A. NoegelU. RdestW. Goebel OriginalPaper Pages: 343 - 350
Linkage group-chromosome correlation in Podospora anserina Jean-Marc SimonetDenise Zickler OriginalPaper Pages: 359 - 367
IS4 is found between eleven or twelve base pair duplications P. HabermannR. KlaerP. Starlinger OriginalPaper Pages: 369 - 373