1. Genome reorganization from polyteny to polyploidy in the nurse cells found in onion fly (Delia antiqua) and cabbage root fly (Delia radicum) ovaries (Diptera, Anthomyiidae)

   • T. P. V. Hartman
   • D. I. Southern

   OriginalPaper Pages: 271 - 280

2. High frequency of mutagen-induced chromatid exchanges at interstitial telomere-like DNA sequence blocks of Chinese hamster cells

   • José Luis Fernández
   • Jaime Gosálvez
   • Vicente Goyanes

   OriginalPaper Pages: 281 - 284

3. Post-zygotic modifications and intra- and inter-individual nucleolar organizing region variations in fish: report of a case involvingLeporinus friderici

   • Pedro M. Galetti Jr
   • Carlos A. Mestriner
   • Ellen M. Rasch

   OriginalPaper Pages: 285 - 290

4. Chromosomal evolution in bovids: a comparison of cattle, sheep and goat G- and R-banded chromosomes and cytogenetic divergences among cattle, goat and river buffalo sex chromosomes

   • Leopoldo Iannuzzi
   • Giulia Pia Di Meo

   OriginalPaper Pages: 291 - 299

5. Mouse p87 ^wee1 kinase is regulated by M-phase specific phosphorylation

   • Reiko Honda
   • Hirofumi Tanaka
   • Hideyo Yasuda

   OriginalPaper Pages: 300 - 308

6. Topographic changes in a heterochromatic chromosome block in humans (15P) during formation of the nucleolus

   • Frederick S. Kaplan
   • J. Patrick O'Connor

   OriginalPaper Pages: 309 - 314

7. Barley telomeres are associated with two different types of satellite DNA sequences

   • Andrea Brandes
   • Marion S. Röder
   • Martin W. Ganal

   OriginalPaper Pages: 315 - 320

8. Chromosome elimination in three Baltic, south Pacific and north-east Pacific hagfish species

   • Yasuharu Nakai
   • Souichirou Kubota
   • Sei-ichi Kohno

   OriginalPaper Pages: 321 - 330

9. RNA metabolismin situ at the 93D heat shock locus in polytene nuclei of Drosophila rnelanogaster after various treatments

   • S. C. Lakhotia
   • Abhay Sharma

   Erratum Pages: 331 - 331

10. Forthcoming meetings

    Events Pages: 331 - 331