1. Segregational mechanisms of sex chromosomes in megaloptera (Neuropteroidea)

   • Sally Hughes-Schrader

   OriginalPaper Pages: 307 - 314

2. Synaptonemal complexes and associated structures in microspread human spermatocytes

   • Alberto J. Solari

   OriginalPaper Pages: 315 - 337

3. Time of recombination in the Drosophila melanogaster Oocyte

   • R. F. Grell
   • E. E. Generoso

   OriginalPaper Pages: 339 - 348

4. DNA synthesized at pachytene in Lilium: A non-divergent subclass of moderately repetitive sequences

   • Robert A. Bouchard
   • Herbert Stern

   OriginalPaper Pages: 349 - 363

5. Estimation of DNA fork displacement rates from isolated mammalian chromosomes

   • Jeff Dieden
   • Robert B. Painter
   • Leon N. Kapp

   OriginalPaper Pages: 365 - 370

6. Absence of short-period repetitive-sequence interspersion in the Basidiomycete Schizophyllum commune

   • Robert C. Ullrich
   • Bruce D. Kohorn
   • Charles A. Specht

   OriginalPaper Pages: 371 - 378

7. Folded chromosomes of Saccharomyces cerevisiae

   • R. Piñon
   • D. Pratt

   OriginalPaper Pages: 379 - 391

8. Quantitative variation of “Mus musculus-like” constitutive heterochromatin and satellite DNA-sequences in the genus Mus

   • S. Sen
   • T. Sharma

   OriginalPaper Pages: 393 - 402

9. Cell-free synthesis and immunological characterization of salivary proteins from Chironomus tentans

   • Paul A. Hardy
   • Claus Pelling

   OriginalPaper Pages: 403 - 417

10. Acid lability of deoxyribonucleic acids of some polytene chromosome regions of Rhynchosciara americana

    • Maria Luiza S. Mello
    • B. C. Vidal

    OriginalPaper Pages: 419 - 429

11. A Drosophila melanogaster cell line tested for the presence of active NORs by silver staining

    • Enrica Privitera

    OriginalPaper Pages: 431 - 437

12. Primary and secondary nonrandom X chromosome inactivation in early female mouse embryos carrying Searle's translocation T(X; 16)16H

    • Nobuo Takagi

    OriginalPaper Pages: 439 - 459

13. Synergistic action of cysteamine and BrdU-substituted DNA in the induction of sister chromatid exchanges

    • G. Speit
    • M. Wolf
    • W. Vogel

    OriginalPaper Pages: 461 - 471

14. Localisation of 7-12-Dimethylbenz(a)anthracene induced chromatid breaks and sister chromatid exchanges in chromosomes 1 and 2 of bone marrow cells of rat in vivo

    • A. C. van Kesteren-van Leeuwen
    • A. T. Natarajan

    OriginalPaper Pages: 473 - 481

15. Origin of kinetochore microtubules in Chinese hamster ovary cells

    • Patricia L. Witt
    • Hans Ris
    • Gary G. Borisy

    OriginalPaper Pages: 483 - 505