E. coli K-12 pel mutants, which block phage λ DNA injection, coincide with ptsM, which determines a component of a sugar transport system Janet ElliottWerner Arber OriginalPaper Pages: 1 - 8
Regulation of surface antigens expression in Paramecium primaurelia Yvonne CapdevilleCorinne ViernyAnne-Marie Keller OriginalPaper Pages: 23 - 29
Release of nascent trp mRNA from the operon DNA in chloramphenicol-treated cells of Escherichia coli Shunsuke IshiiFumio Imamoto OriginalPaper Pages: 31 - 37
Incompatibility and transforming efficiency of ColE1 and related plasmids Gareth WarrenDavid Sherratt OriginalPaper Pages: 39 - 47
Chromosomal gene transfer of human cytosol thymidine kinase into mouse cells Klaus WilleckeRudolf MierauRita Lange OriginalPaper Pages: 49 - 57
Multiple independent control mechanisms affecting the acetamidase of Aspergillus nidulans M. J. Hynes OriginalPaper Pages: 59 - 65
Isolation and characterization of cell lines of Nicotiana tabacum lacking nitrate reductase Andreas J. MüllerReinhard Grafe OriginalPaper Pages: 67 - 76
Reconstitution of NADH-nitrate reductase in vitro from nitrate reductase-deficient Nicotiana tabacum mutants Ralf R. MendelAndreas J. Müller OriginalPaper Pages: 77 - 80
The influence of defects in excision and error prone repair on spontaneous and induced mitotic recombination and mutation in Saccharomyces cerevisiae R. KernF. K. Zimmermann OriginalPaper Pages: 81 - 88
Mutations determining generalized resistance to aminoglycoside antibiotics in Escherichia coli Sigríður H. ThorbjarnardóttirRagnheiður Á. MagnúsdóttirÓlafur S. Andrésson OriginalPaper Pages: 89 - 98
Genetic determination of ubiquinol-cytochromec reductase Július ŠubíkGizela Takácsová OriginalPaper Pages: 99 - 108
A mutation allowing utilisation of lactose by Escherichia coli lac Y mutants defective in lactose permease Ann C. Hobson Short Communication Pages: 109 - 110