1. One gene, several messages. From multifunctional proteins to endogenous opiates

   • J. Frézal
   • A. Munnich
   • G. Mitchell

   Review Articles Pages: 311 - 314

2. Eukaryotic DNA methylation

   • D. N. Cooper

   Review Articles Pages: 315 - 333

3. Decreased oxygen supply enhances growth in culture of human mid-trimester amniotic fluid cells

   • M. Brackertz
   • M. Kubbies
   • D. Salk

   Original Investigations Pages: 334 - 338

4. Use of repetitive DNA for diagnosis of chromosomal rearrangements

   • R. D. Burk
   • Judith Stamberg
   • K. D. Smith

   Original Investigations Pages: 339 - 342

5. The 11q;22q translocation: A collaborative study of 20 new cases and analysis of 110 families

   • L. Iselius
   • J. Lindsten
   • O. Zuffardi

   Original Investigations Pages: 343 - 355

6. Prader-Willi syndrome and chromosome 15

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

   Original Investigations Pages: 356 - 362

7. Silver staining of nucleolus organizer regions during human spermatogenesis

   • M. Schmid
   • Hj. Müller
   • W. Engel

   Original Investigations Pages: 363 - 370

8. Reliability of the use of fructose 1-phosphate to detect Hunter cells in fibroblast-cultures of obligate carriers of the Hunter syndrome

   • T. Tønnesen
   • F. Güttler
   • C. Lykkelund

   Original Investigations Pages: 371 - 375

9. Hb M Milwaukee: Direct detection of the β-globin gene mutation in three generations of an afflicted family

   • Renate Oehme
   • Elisabeth Kohne
   • J. Horst

   Original Investigations Pages: 376 - 379

10. Genetic studies of an apoA-I lipoprotein variant

    • O. Schamaun
    • B. Olaisen
    • P. Teisberg

    Original Investigations Pages: 380 - 383

11. Unusual response to bifunctional alkylating agents in a case of Fanconi anaemia

    • M. L. Kwee
    • E. H. A. Poll
    • H. Joenje

    Original Investigations Pages: 384 - 387

12. Deficiency, transposition, and duplication of one 15q region may be alternatively associated with Prader-Willi (or a similar) syndrome. Analysis of seven cases after varying ascertainment

    • M. Fraccaro
    • O. Zuffardi
    • V. Vigi

    Original Investigations Pages: 388 - 394

13. Red cell glyoxalase I polymorphism in Basque and Castilian populations

    • M. Martínez de Pancorbo
    • María Isusquiza
    • C. Ma Lostao

    Original Investigations Pages: 395 - 397

14. Prevalence of primary adult lactose malabsorption in Hungary

    • A. Czeizel
    • G. Flatz
    • Sibylle D. Flatz

    Original Investigations Pages: 398 - 401

15. Ineffectivity of accessory bisatellited marker chromosomes in inducing meiotic nondisjunction

    • P. Steinbach
    • M. Djalali

    Short Communications Pages: 402 - 403

16. Reliability of the Tønnesen technique for the identification of Hunter carriers

    • L. Petruschka
    • G. Machill
    • A. Knapp

    Short Communications Pages: 404 - 406

17. Familial insulin-resistant diabetes secondary to an affinity defect of the insulin receptor

    • H. W. Rüdiger
    • M. Dreyer
    • H. Bartelheimer

    Clinical Case Reports Pages: 407 - 411

18. De novo inversion 1, in amniotic, fluid cell cultures

    • Maria Stührenberg

    Cases Observed Pages: 412 - 412

19. Announcements

    Announcement Pages: 413 - 413