1. The morphological relationship in electron microscopy between NOR-silver proteins and intranucleolar chromatin

   • D. Hernandez-Verdun
   • M. Derenzini
   • M. Bouteille

   OriginalPaper Pages: 461 - 473

2. Ribosomal gene amplification in multinucleate oocytes of the egg brooding hylid frog Flectonotus pygmaeus

   • H. C. Macgregor
   • Eugenia M. del Pino

   OriginalPaper Pages: 475 - 488

3. Polymorphism and stability in the histone gene cluster of Drosophila melanogaster

   • Linda D. Strausbaugh
   • Eric S. Weinberg

   OriginalPaper Pages: 489 - 505

4. C-heterochromatin polymorphism and variation in chiasma localization in Euchorthippus pulvinatus gallicus (Acrididae, Orthoptera)

   • J. L. Santos
   • R. Giráldez

   OriginalPaper Pages: 507 - 518

5. Destruction of specific heterochromatic chromosomes during spermatogenesis in the Comstockiella chromosome system (Coccoidea: Homoptera)

   • Uzi Nur

   OriginalPaper Pages: 519 - 530

6. Evolutionary changes in non-histone chromosomal proteins within the Drosophila melanogaster group revealed by monoclonal antibodies

   • Rainer Kabisch
   • Jörg Krause
   • Ekkehard K. F. Bautz

   OriginalPaper Pages: 531 - 538

7. Mutants affecting position-effect heterochromatinization in Drosophila melanogaster

   • G. Reuter
   • W. Werner
   • H. J. Hoffmann

   OriginalPaper Pages: 539 - 551

8. BrdU-Hoechst-Giemsa analysis of DNA replication in synchronized lymphocyte cultures

   • Bogdan Kałużewski

   OriginalPaper Pages: 553 - 569

9. Isolation of chromosome clusters from metaphase-arrested HeLa cells

   • James R. Paulson

   OriginalPaper Pages: 571 - 581

10. G-band-like structures and centromeric asymmetry in the BrdU containing mouse chromosomes

    • Susumu Takayama
    • Kyomu Matsumoto

    OriginalPaper Pages: 583 - 590

11. cDNA clones from meiotic-specific poly(A)⁺ RNA in Lilium: Homology with sequences in wheat, rye, and maize

    • Rudi Appels
    • Robert A. Bouchard
    • Herbert Stern

    OriginalPaper Pages: 591 - 602