1. Non mendelian female sterility in Drosophila melanogaster, further data on chromosomal contamination

   • Georges Picard

   OriginalPaper Pages: 235 - 247

2. The localization of tRNA ₂ ^Asp genes from Drosophila melanogaster by “in situ” hybridization

   • Thomas Schmidt
   • Albert H. Egg
   • Eric Kubli

   OriginalPaper Pages: 249 - 254

3. Reversion in variants from a duplication strain a Aspergillus nidulans

   • Elza M. Menezes
   • João Lúcio Azevedo

   OriginalPaper Pages: 255 - 258

4. A DNA segment within the colicin E1 structural gene on ColE1 affecting immunity to colicin

   • A. Shafferman
   • S. Cohen
   • Y. Flashner

   OriginalPaper Pages: 259 - 264

5. Preferential sensitivity of syntheses of exported proteins to translation inhibitors of low polarity in Escherichia coli

   • Michel Piovant
   • Stanislas Varenne
   • Claude Lazdunski

   OriginalPaper Pages: 265 - 274

6. Catabolic synergism. A cooperation between the availability of substrate and the need for nitrogen in the regulation of arginine catabolism in Saccharomyces cerevisiae

   • Evelyne L. Dubois
   • Jean-Marie Wiame

   OriginalPaper Pages: 275 - 283

7. Restriction endonuclease mapping of pSC101 and pMB9

   • Robert C. Tait
   • Herbert W. Boyer

   OriginalPaper Pages: 285 - 288

8. Circular molecules of heterogeneous size from mitochondrial fractions of the petite-negative yeast Schizosaccharomyces pombe

   • L. Del Gjudice
   • K. Wolf
   • C. Alvino

   OriginalPaper Pages: 289 - 293

9. Genetic control of invertase formation in Saccharomyces cerevisiae

   • R. A. Hackel
   • N. A. Khan

   OriginalPaper Pages: 295 - 302

10. A mutation defective in the xanthine alternative pathway of Aspergillus nidulans

    • Heather M. Sealy-Lewis
    • Claudio Scazzocchio
    • Sidney Lee

    OriginalPaper Pages: 303 - 308

11. Extrachromosomal inheritance in Schizosaccharomyces pombe

    • G. Seitz-Mayr
    • K. Wolf
    • F. Kaudewitz

    OriginalPaper Pages: 309 - 320

12. Extrachromosomal inheritance in Schizosaccharomyces pombe

    • K. Wolf
    • G. Seitz-Mayr
    • F. Kaudewitz

    OriginalPaper Pages: 321 - 329

13. Ant-mediated transactivation of early genes in Salmonella prophage P22 by superinfecting virulent P22 mutants

    • Hermann H. Prell

    Short Communication Pages: 331 - 334

14. Bacillus subtilis dnaF: A mutation of the gene specifying the structure of DNA polymerase III

    • Mary Jane Vrooman
    • Marjorie H. Barnes
    • Neal C. Brown

    Short Communication Pages: 335 - 339

15. Absence of suppressible alleles at the his 1 locus of yeast

    • Richard Snow

    Short Communication Pages: 341 - 342