1. Induction of UV-resistant DNA replication in Escherichia coli: Induced stable DNA replication as an SOS function

   • T. Kogoma
   • T. A. Torrey
   • M. J. Connaughton

   OriginalPaper Pages: 1 - 9

2. Pollen DNA repair after treatment with the mutagens 4-nitroquinoline-1-oxide, ultraviolet and near-ultraviolet irradiation, and boron dependence of rapair

   • John F. Jackson
   • H. F. Linskens

   OriginalPaper Pages: 11 - 16

3. Cloning of the entire region for nitrogen fixation from Klebsiella pneumoniae on a multicopy plasmid vehicle in Escherichia coli

   • A. Pühler
   • H. J. Burkardt
   • W. Klipp

   OriginalPaper Pages: 17 - 24

4. Specific effects of nalidixic acid on mitochondrial gene expression in Saccharomyces cerevisiae

   • Henry R. Mahler
   • Jeanette Johnson

   OriginalPaper Pages: 25 - 31

5. Ant-mediated inactivation of Salmonella phage L-specified repression at o_R of prophage L

   • Hermann H. Prell

   OriginalPaper Pages: 33 - 36

6. Nalidixic acid causes a transient G1 arrest in the yeast Saccharomyces cerevisiae

   • R. A. Singer
   • G. C. Johnston

   OriginalPaper Pages: 37 - 39

7. Formation and fate of cross-links induced by polyfunctional anticancer drugs in yeast

   • Reinhard Fleer
   • Martin Brendel

   OriginalPaper Pages: 41 - 52

8. Temperature-sensitive mutants in cysteinyl-tRNA ligase of E. coli K-12

   • Kaj Bohman
   • Leif A. Isaksson

   OriginalPaper Pages: 53 - 55

9. Analysis of a range of crown gall and normal plant tissues for Ti plasmid-determined compounds

   • I. M. Scott
   • J. L. Firmin
   • G. R. Fenwick

   OriginalPaper Pages: 57 - 65

10. Evidence for non-random spatial distribution of meiotic exchanges in Podospora anserina: Comparison between linkage groups 1 and 6

    • Denise Marcou
    • Arlette Masson
    • Gisèle Piquepaille

    OriginalPaper Pages: 67 - 79

11. Patterns of reversion to bobbed condition of magnified bobbed loci in D. melanogaster

    • E. Boncinelli
    • M. Furia

    OriginalPaper Pages: 81 - 85

12. Altered linkage values in phage P22-mediated transduction caused by distant deletions or insertions in donor chromosomes

    • Krystyna Krajewska-Grynkiewicz
    • T. Kłopotowski

    OriginalPaper Pages: 87 - 93

13. E. coli ribosomal proteins are cross reactive with antibody prepared against Chlamydomonas reinhardi chloroplast ribosomal subunit

    • Richard Schneeman
    • Stefan Surzycki

    OriginalPaper Pages: 95 - 104

14. A cold-sensitive β subunit mutant RNA polymerase from Escherichia coli with defects in promoter opening in vitro

    • O. A. Larionov
    • A. I. Gragerov
    • V. G. Nikiforov

    OriginalPaper Pages: 105 - 111

15. Transposon 10 promoted deletions and inversions in the transfer genes of R100-1

    • M. A. Kehoe
    • T. J. Foster

    OriginalPaper Pages: 113 - 120

16. A kinetic analysis of cell division, and induction and stability of recA protein in U.V. irradiated lon ⁺ and lon-strains of Escherichia coli K12

    • Valerie Darby
    • I. B. Holland

    OriginalPaper Pages: 121 - 128

17. Variation of gene conversion and intragenic recombination frequencies in the genome of Ascobolus immersus

    • A. Nicolas

    OriginalPaper Pages: 129 - 138

18. ColE1 DNA sequences interacting in cis, essential for mitomycin-C induced lethality

    • A. Shafferman
    • Y. Flashner
    • Sara Cohen

    OriginalPaper Pages: 139 - 146

19. Identification of a mutation affecting an alanine-α-ketoisovalerate transaminase activity in Escherichia coli K-12

    • Joseph O. Falkinham III

    Short Communication Pages: 147 - 149

20. Chromosomal mobilization from a recA mutant of Pseudomonas putida

    • A. M. Chakrabarty
    • I. C. Gunsalus

    Short Communication Pages: 151 - 154