1. Genetic disorders presenting as “schizophrenia”. Karl bonhoeffer's early view of the psychoses in the light of medical genetics

   • P. Propping

   Review Articles Pages: 1 - 10

2. Towards an understanding of the molecular mechanisms regulating gene expression during diploidization in phylogenetically polyploid lower vertebrates

   • M. Leipoldt

   Review Articles Pages: 11 - 18

3. A list of cloned human DNA sequences

   • J. Schmidtke
   • D. N. Cooper

   Review Articles Pages: 19 - 26

4. Incidence at birth of different types of limb reduction abnormalities in Hungary 1975–1977

   • Mária Bod
   • A. Czeizel
   • W. Lenz

   Original Investigations Pages: 27 - 33

5. Family study of congenital limb reduction abnormalities in Hungary 1975–1977

   • A. Czeizel
   • Mária Bod
   • W. Lenz

   Original Investigations Pages: 34 - 45

6. Cytogenetic investigation of 103 patients with primary or secondary amenorrhea

   • O. Opitz
   • I. Hansmann
   • B. Hinney

   Original Investigations Pages: 46 - 47

7. Chromosome anomalies in 136 couples with a history of recurrent abortions

   • U. Diedrich
   • I. Hansmann
   • H. -D. Probeck

   Original Investigations Pages: 48 - 52

8. On the genetic length of the short arm of the human X chromosome

   • H. -H. Ropers
   • P. Wieacker
   • R. Williamson

   Original Investigations Pages: 53 - 55

9. The genetic basis of non-disjunction: Increased incidence of hyperploidy in oocytes from F₁ hybrid mice

   • I. Hansmann
   • J. Jenderny

   Original Investigations Pages: 56 - 60

10. Acrosin and the acrosome in human spermatogenesis

    • Sibylle Flörke-Gerloff
    • Edda Töpfer-Petersen
    • W. Engel

    Original Investigations Pages: 61 - 67

11. Genetics of human S-adenosylhomocysteine hydrolase. A new polymorphism in man

    • S. Bissbort
    • K. Bender
    • K. H. Grzeschik

    Original Investigations Pages: 68 - 71

12. Evidence that the Menkes locus maps on proximal Xp

    • T. F. Wienker
    • P. Wieacker
    • H. H. Ropers

    Short Communications Pages: 72 - 73

13. Genetic counseling in families with spinal muscular atrophy type Kugelberg-Welander

    • K. Zerres
    • T. Grimm

    Short Communications Pages: 74 - 75

14. Manifestation of the fragile site Xq27 in fibroblasts

    • G. Barbi
    • P. Steinbach
    • W. Vogel

    Short Communications Pages: 76 - 78

15. A search for linkage in families with fragile sites

    • J. C. Mulley
    • Catherine Nicholls
    • G. R. Sutherland

    Short Communications Pages: 79 - 81

16. Reduced NOR association frequency in a 13/18 translocation chromosome. A family study

    • P. van Tuinen
    • Louise C. Strong
    • S. Pathak

    Short Communications Pages: 82 - 84

17. Loss of electron-dense lamellar material from Fabry's disease fibroblasts after enzyme replacement

    • R. N. Sifers
    • J. S. Mayes
    • R. E. Nordquist

    Short Communications Pages: 85 - 87

18. A fragile X suppressor in the normal human blood?

    • D. Soudek
    • Mary Emanuel

    Short Communications Pages: 88 - 89