1. Scanning electron microscopy of amphibian lampbrush chromosomes

   • N. Angelier
   • M. Paintrand
   • J. P. Lechaire

   OriginalPaper Pages: 243 - 253

2. Self-complementary DNA sequences within the BRc gene of Chironomus thummi

   • R. Panitz
   • H. Bäumlein
   • E. Serfling

   OriginalPaper Pages: 254 - 262

3. Allocyclic behaviour and underreplication of the nucleolus chromosome in Pseudodiamesa (Chironomidae)

   • Helmut Zacharias

   OriginalPaper Pages: 263 - 273

4. Effects of ligation on ethanol-induced Balbiani ring puffing in salivary glands of Chironomus

   • Shizuo Yagi

   OriginalPaper Pages: 274 - 279

5. Development of DNA puffs and patterns of polypeptide synthesis in the salivary glands of Bradysia hygida

   • Eduardo M. Laicine
   • Maurílio A. R. Alves
   • Heni Sauaia

   OriginalPaper Pages: 280 - 284

6. Effect of 5-bromodeoxyuridine substitution on sister chromatid exchange induction by chemicals

   • William F. Morgan
   • Sheldon Wolff

   OriginalPaper Pages: 285 - 289

7. Evolution of a complex B-chromosome polymorphism in the grasshopper Eyprepocnemis plorans

   • N. Henriques-Gil
   • J. L. Santos
   • P. Arana

   OriginalPaper Pages: 290 - 293

8. A photographic representation of the variability in the G-banded structure of the chromosomes in the mouse karyotype

   • John K. Cowell

   OriginalPaper Pages: 294 - 320