Both caffeine-induced lethality and the negative liquid holding effect, in UV- or γ-irradiated wild-type Schizosaccharomyces pombe, are consequences of interference with a recombinational repair process Norman E. Gentner OriginalPaper Pages: 283 - 287
Is it possible to isolate methionine auxotrophs in Chlamydomonas reinhardtii? Kazuo NakamuraSandra L. LepardJusan J. MacDonald OriginalPaper Pages: 292 - 295
A map of specific cleavage sites and tRNA genes in the chloroplast genome of Euglena gracilis bacillaris M. Raafat El-GewelyMargaret I. LomaxW. Edgar Barnett OriginalPaper Pages: 296 - 305
Nucleo-cytoplasmic interactions in the petite negative yeast Schizosaccharomyces pombe L. Del GiudiceK. WolfF. Manna OriginalPaper Pages: 306 - 308
An improved method for two-dimensional gel-electrophoresis: Analysis of mutationally altered ribosomal proteins of Escherichia coli Dieter GeylAugust BöckKatsumi Isono OriginalPaper Pages: 309 - 312
Selection for purine regulatory mutants in an E. coli hypoxanthine phosphoribosyl transferase-guanine phosphoribosyl transferase double mutant Roy A. LevineMilton W. Taylor OriginalPaper Pages: 313 - 318
The recombinational analysis of aberrations and the position of the Notch locus on the polytene chromosome of Drosophila W. J. WelshonsD. O. Keppy OriginalPaper Pages: 319 - 324
Purification of bacteriophage λO protein that specifically binds to the origin of replication Toshiki TsurimotoKenichi Matsubara OriginalPaper Pages: 325 - 331
Initiation of DNA replication in Bacillus subtilis Naotake OgasawaraMotoharu SeikiHiroshi Yoshikawa OriginalPaper Pages: 332 - 337
Fluorocitrate resistant tricarboxylate transport mutants of Salmonella typhimurium J. M. SomersG. D. SweetW. W. Kay OriginalPaper Pages: 338 - 345
Isolation of yeast mutants sensitive to the bifunctional alkylating agent nitrogen mustard Axel RuhlandEckard HaaseMartin Brendel OriginalPaper Pages: 346 - 351
Transcription of colicin E1 plasmid: Electron-microscopic mapping of promoters G. N. NaumovaE. I. GolovanovA. A. Alexandrov OriginalPaper Pages: 352 - 355
Organization of genes in the four minute region of the Escherichia coli chromosome: Evidence that rpsB and tsf are Co-transcribed D. S. BendiakJ. D. Friesen OriginalPaper Pages: 356 - 362
Effect of DNA gyrase inhibitors on gene expression of the cysteine regulon Jacek OstrowskiDanuta Hulanicka OriginalPaper Pages: 363 - 366
A mutant rho ATPase from Escherichia coli that is temperature-sensitive in the presence of RNA Rachel B. KentSonia K. Guterman OriginalPaper Pages: 367 - 372
Dolor-Amino acid dehydrogenase of Escherichia coli K12: Positive selection of mutants defective in enzyme activity and localization of the structural gene Jadwiga WildT. Kłopotowski OriginalPaper Pages: 373 - 378
Molecular cloning of menaquinone biosynthetic genes of Escherichia coli K12 John R. GuestDuncan J. Shaw OriginalPaper Pages: 379 - 383
Isolation and mapping of Escherichia coli K12 mutants defective in Tn9 transposition T. S. HyinaE. V. NechaevaG. B. Smirnov OriginalPaper Pages: 384 - 389
A novel form of suppression due to an altered RNA polymerase Erela Ephrati-ElizurSheila Luther-Davies OriginalPaper Pages: 390 - 394
Presence of the molybdenum-cofactor in nitrate reductase-deficient mutant cell lines of Nicotiana tabacum Ralf R. MendelZerekbai A. AlikulovAndreas J. Müller OriginalPaper Pages: 395 - 399
torpid a new sex-linked paralytic mutation in Drosophila melanogaster Satpal SinghO. Siddiqi Short Communication Pages: 400 - 402
Regeneration of protoplasts of dihaploid potato plants bleached by a herbicide (SAN 6706) Helmut Uhrig Short Communication Pages: 403 - 405
A gustatory mutant of Drosophila defective in pyranose receptors Veronica RodriguesO. Siddiqi Short Communication Pages: 406 - 408
Petite-negative mutants of Saccharomyces cerevisiae William E. LancashireMark A. PaytonBrian S. Hartley Short Communication Pages: 409 - 410
Chromosome replication following a temporary inhibition of DNA-synthesis by nalidixic acid in a temperature-sensitive dnaA mutant of Escherichia coli G. G. Khachatourians Short Communication Pages: 411 - 413
Meiotic mapping of the nuclear determinant of cell lysis of the osmotic dependent Saccharomyces cerevisiae mutant VY1160 Lubomira StatevaPencho Venkov Short Communication Pages: 414 - 415
