1. Electron microscopic band-interband pattern of the X chromosome in Drosophila hydei

   • W. -E. Kalisch
   • G. Schwitalla
   • T. Whitmore

   OriginalPaper Pages: 387 - 392

2. Polymorphism of the Mdg-1 and I mobile elements in Drosophila melanogaster

   • C. Biémont

   OriginalPaper Pages: 393 - 397

3. Suppressor mutation of position-effect variegation in Drosophila melanogaster affecting chromatin properties

   • R. Dorn
   • S. Heymann
   • G. Reuter

   OriginalPaper Pages: 398 - 403

4. Light and scanning electron microscopic observations on the two contrasting types of sister chromatid differential staining after ultraviolet light irradiation

   • Susumu Takayama
   • Toshihiko Taniguchi

   OriginalPaper Pages: 404 - 408

5. Analysis of bromodeoxyuridine-induced single and twin sister chromatid exchanges in tetraploid Chinese hamster ovary cells

   • Jeffrey L. Schwartz

   OriginalPaper Pages: 409 - 412

6. Synaptonemal complex formation in hybrids of Lolium temulentum x Lolium perenne (L.)

   • G. Jenkins

   OriginalPaper Pages: 413 - 419

7. Synaptonemal complex spreading in Allium

   • J. Loidl
   • G. H. Jones

   OriginalPaper Pages: 420 - 428

8. Nuclear matrix network in Allium cepa

   • Sibdas Ghosh
   • Roma Dey

   OriginalPaper Pages: 429 - 434

9. Heterochromatic DNA in Tritmus (Amphibia, Urodela)

   • Giuseppina Barsacchi-Pilone
   • Renata Batistoni
   • Irma Nardi

   OriginalPaper Pages: 435 - 446

10. Further examination of the production-line hypothesis in mouse foetal oocytes

    • C. Tease
    • G. Fisher

    OriginalPaper Pages: 447 - 452

11. The effect of trifluoroperazine on microtubules, nuclear division and the nuclear membranes of the ciliate Nyctotherus ovalis

    • Ute Hamelmann
    • Ursula Eichenlaub-Ritter
    • August Ruthmann

    OriginalPaper Pages: 453 - 459