1. On procaryotic gene expression in eucaryotic systems

   • Jürgen Horst
   • Helen Stanbro
   • Carl R. Merril

   Review Articles Pages: 289 - 302

2. A new case of Y to X translocation in a female

   • Th. Hecht
   • H. J. Cooke
   • H. Hameister

   Original Investigations Pages: 303 - 307

3. Tandem duplication dup(X)(q13q22) in a male proband inherited from the mother showing mosaicism of X-inactivation

   • P. Steinbach
   • W. Horstmann
   • W. Scholz

   Original Investigations Pages: 309 - 313

4. Turner syndrome patients are H-Y positive

   • U. Wolf
   • M. Fraccaro
   • H. Hameister

   Original Investigations Pages: 315 - 318

5. Possible origin of a small bisatellited additional chromosome

   • H.-D. Bartsch
   • L. M. de Azevedo Moreira
   • H.-J. Gebauer

   Original Investigations Pages: 319 - 322

6. Cytological evidence for the location of male-determining and H-Y genes on the short arm of Y chromosome

   • M. Faggiano
   • M. Ferraro
   • A. de Capoa

   Original Investigations Pages: 323 - 326

7. EEG differences in neurotic as compared with normal twin pairs

   • F. Vogel
   • J. Krüger
   • V. Kansteiner

   Original Investigations Pages: 327 - 334

8. Effects of X-irradiation in G₁ and G₂ on Bloom's syndrome and normal chromosomes

   • Evelyn Meyer Kuhn

   Original Investigations Pages: 335 - 341

9. Intercalar satellites of human acrocentric chromosomes as a cytological manifestation of polymorphism in GC-rich material?

   • P. Balíĉek
   • J. Žižka

   Original Investigations Pages: 343 - 347

10. Comparison of acrocentric associations in male and female cells. Relationship to the active nucleolar organizers

    • H. Galperin-Lemaître
    • L. Hens
    • B. Sele

    Original Investigations Pages: 349 - 353

11. Body measurements of patients with streak gonads and their bearing upon the karyotype

    • P. Bősze
    • O. G. Eiben
    • J. László

    Original Investigations Pages: 355 - 360

12. Pi ^Ecincinnati: A new alpha₁-antitrypsin allele in three negro families

    • G. Hug
    • Gail Chuck
    • Magne K. Fagerhol

    Original Investigations Pages: 361 - 364

13. Advantages of silver staining in seven rearrangements of acrocentric chromosomes, excluding robertsonian translocations

    • M.-G. Mattei
    • J.-F. Mattei
    • F. Giraud

    Original Investigations Pages: 365 - 370

14. A linkage study of hereditary ataxias and related disorders

    • Lene Pedersen
    • P. Platz
    • J. Dissing

    Original Investigations Pages: 371 - 383

15. Studies on the influence of liquid holding in Con-A stimulated human peripheral blood lymphocytes on mitosis and X-ray induced chromosome aberrations

    • G. Obe
    • A. T. Natarajan
    • A. den Hertog

    Original Investigations Pages: 385 - 390

16. Ultrastructural changes of the intercellular relationship in impaired human spermatogenesis

    • E. Schleiermacher

    Original Investigations Pages: 391 - 404

17. Silver-stained synaptonemal complexes of human pachytene bivalents studied by light microscopy

    • Suresh C. Jhanwar
    • R. S. K. Chaganti

    Original Investigations Pages: 405 - 408

18. Somatic cell hybridisation studies showing different gene mutations in Niemann-Pick variants

    • G. T. N. Besley
    • A. J. M. Hoogeboom
    • H. Galjaard

    Original Investigations Pages: 409 - 412

19. Paracentric inversion in man: Personal experience and review of the literature

    • J. P. Fryns
    • H. Van den Berghe

    Original Investigations Pages: 413 - 416

20. Genetic linkage between Bf S0.7 (Bf S1) and HLA-Bw50

    • E. Ohayon
    • A. de Mouzon
    • J. Ducos

    Short Communications Pages: 417 - 418

21. Data on linkage relations between GLO and 21-hydroxylase

    • J. Kömpf
    • G. Siebert
    • H. Moeller

    Short Communications Pages: 419 - 420

22. Announcements

    Announcement Pages: 421 - 421