1. DNA sequence organization in Phycomyces blakesleeanus

   • Rasika M. Harshey
   • M. Jayaram
   • M. E. Chamberlin

   OriginalPaper Pages: 143 - 151

2. Primate repetitive DNAs: evidence for new satellite DNAs and similarities in non-satellite repetitive DNA sequence properties

   • Kenneth A. Marx
   • Ian F. Purdom
   • Kenneth W. Jones

   OriginalPaper Pages: 153 - 161

3. Electron microscope autoradiographic study on transcriptional activity of Drosophila melanogaster polytene chromosomes

   • V. F. Semeshin
   • I. F. Zhimulev
   • E. S. Belyaeva

   OriginalPaper Pages: 163 - 177

4. Visualization of transcription in early mouse embryos

   • M. E. Hughes
   • K. Bürki
   • S. Fakan

   OriginalPaper Pages: 179 - 190

5. Studies on triploid Allium triquetrum

   • Catherine Balog

   OriginalPaper Pages: 191 - 205

6. Experimental hybridization within the genus Triturus (Urodela: Salamandridae)

   • Giorgio Mancino
   • Matilde Ragghianti
   • Stefania Bucci-Innocenti

   OriginalPaper Pages: 207 - 226

7. Analysis of centromere co-orientation in a rye-wheat derivative by means of C-banding

   • T. Naranjo
   • J. R. Lacadena

   OriginalPaper Pages: 227 - 235

8. Development of the synaptonemal complex and polycomplex formation in three species of grasshoppers

   • P. Esponda
   • D. B. Krimer

   OriginalPaper Pages: 237 - 245

9. The distribution of synaptonemal complex material in metaphase I bivalents of Locusta and Chloealtis (Orthoptera: Acrididae)

   • Peter B. Moens
   • Kathleen Church

   OriginalPaper Pages: 247 - 254

10. Synaptonemal complexes of mouse and human pachytene chromosomes visualized by silver staining in air-dried preparations

    • J. Forejt
    • P. Goetz

    OriginalPaper Pages: 255 - 261