1. Pleiotropic mutants affecting the control of nitrogen metabolism in Aspergillus nidulans

   • M. J. Hynes

   OriginalPaper Pages: 99 - 107

2. Intragenic somatic recombination in the Lozenge cistron of Drosophila

   • Chiyoko Tokunaga

   OriginalPaper Pages: 109 - 118

3. Salmonella typhimurium mutants affecting establishment of lysogeny

   • R. Nagaraja Rao
   • C. V. Sundar Raj

   OriginalPaper Pages: 119 - 123

4. The effect of chromosome transfer on gene expression in Escherichia coli Hfr

   • P. Vijay Sarathy
   • O. Siddiqi

   OriginalPaper Pages: 125 - 132

5. Effect of mating on cell division in Escherichia coli Hfr

   • P. Vijay Sarathy
   • O. Siddiqi

   OriginalPaper Pages: 133 - 137

6. Regulation of maltose fermentation in Saccharomyces carlsbergensis

   • A. M. A. ten Berge
   • G. Zoutewelle
   • H. P. J. Bloemers

   OriginalPaper Pages: 139 - 146

7. The genetic control of molybdoflavoproteins in Aspergillus nidulans

   • Claudio Scazzocchio

   OriginalPaper Pages: 147 - 155

8. Die genetische Grundlage der Monogenie bei der Schmeißfliege Chrysomya rufifacies (Calliphoridae, Diptera)

   • Fritz-Helmut Ullerich

   OriginalPaper Pages: 157 - 172

9. Nascent ribosomal and messenger RNA in DNA-membrane-complexes of Escherichia coli

   • Lucia Gierer

   OriginalPaper Pages: 173 - 187

10. The kinetics of the requirement for X gene product in bacteriophage P22

    • Milan Bezděk
    • Jiří Soška

    OriginalPaper Pages: 189 - 196