1. The role of calcium ions during mitosis

   • Jonathan G. Izant

   OriginalPaper Pages: 1 - 10

2. The effects of incorporated tritium and bromodeoxyuridine on the frequency of sister chromatid exchanges

   • Nestor O. Bianchi
   • Marcelo L. Larramendy

   OriginalPaper Pages: 11 - 15

3. Secretory proteins and Balbiani ring gene activities in salivary glands of Chironomus thummi larvae

   • E. Serfling
   • L. Meyer
   • Kerstin Steiner

   OriginalPaper Pages: 16 - 23

4. Fractionation and characterization of rapidly phosphorylated nuclear proteins in salivary gland cells of Chironomus tentans

   • Endre Egyházi
   • Andrew Pigon
   • Lars Rydlander

   OriginalPaper Pages: 24 - 30

5. Gene amplification in methotrexate-resistant mouse cells

   • Christopher J. Bostock
   • Elizabeth M. Clark

   OriginalPaper Pages: 31 - 41

6. Preparation of centromeric heterochromatin by restriction endonuclease digestion of mouse L929 cells

   • Lorraine Lica
   • Barbara Hamkalo

   OriginalPaper Pages: 42 - 49

7. Visualization of a lampbrush loop-forming fertility gene in Drosophila hydei

   • Caspar J. Grond
   • Ingrid Siegmund
   • Wolfgang Hennig

   OriginalPaper Pages: 50 - 56

8. Population cytogenetics of Atractomorpha similis

   • Bernard John
   • Max King

   OriginalPaper Pages: 57 - 68

9. Chromosome banding in Amphibia

   • M. Schmid
   • T. Haaf
   • S. Sims

   OriginalPaper Pages: 69 - 82

10. Polymorphisms for asymmetric reciprocal translocations in two species of the genus Sideritis L. (Lamiaceae)

    • A. M. Fernández-Peralta
    • J. J. González-Aguilera
    • A. Sañudo

    OriginalPaper Pages: 83 - 89