1. Mitotic asynchrony of multinucleate cells in tissue culture

   • S. Ghosh
   • N. Paweletz
   • I. Ghosh

   OriginalPaper Pages: 293 - 300

2. Chromosome instability in Hordeum vulgare x H. bulbosum hybrids

   • M. W. Humphreys

   OriginalPaper Pages: 301 - 307

3. Giemsa C-banding in Gibasis (Commelinaceae)

   • A. Kenton

   OriginalPaper Pages: 309 - 324

4. Studies in heterochromatin DNA: Characterization of transcripts synthesized in situ from C-banded preparations

   • M. Tien Kuo
   • T. C. Hsu

   OriginalPaper Pages: 325 - 334

5. DNA sequence organization in the genome of Petroselinum sativum (Umbelliferae)

   • Manuel Kiper
   • Frank Herzfeld

   OriginalPaper Pages: 335 - 351

6. Evidence that in higher plants the 25S and 18S rRNA genes are not interspersed with genes for 5S rRNA

   • Vera Hemleben
   • Donald Grierson

   OriginalPaper Pages: 353 - 358

7. Localization of RNA synthesis sites in the 1B-3C region of the Drosophila melanogaster X Chromosome

   • E. V. Ananiev
   • V. E. Barsky

   OriginalPaper Pages: 359 - 371

8. Arrangement of the rRNA sequences in the rDNA of Lytechinus variegatus

   • Frances E. Wilson
   • Nikolaus Blin
   • Darrel W. Stafford

   OriginalPaper Pages: 373 - 381

9. Evidence for a mitochondrial chromosome in Xenopus laevis oocytes

   • H. Pinon
   • M. Barat
   • J. C. Mounolou

   OriginalPaper Pages: 383 - 389

10. Errata

    • D. Schweizer

    Erratum Pages: 391 - 391