1. Studies on DNA markers (D4S10 and D4S43/S127) genetically linked to Huntington's disease in Japanese families

   • Ichiro Kanazawa
   • Ikuko Kondo
   • James F. Gusella

   Original Investigation Pages: 257 - 260

2. High-resolution dynamic and morphological G-bandings (GBG and GTG): a comparative study

   • Nicole Lemieux
   • Régen Drouin
   • Claude-Lise Richer

   Original Investigation Pages: 261 - 266

3. Differential bleomycin susceptibility in cultured lymphocytes of fragile X patients and normal individuals

   • Shuan-Yow Li
   • Jen-Kun Lin

   Original Investigation Pages: 267 - 271

4. Molecular characterization of β-thalassemia mutations in Egypt

   • A. Novelletto
   • M. Hafez
   • L. Terrenato

   Original Investigation Pages: 272 - 274

5. Prenatal diagnosis and linkage disequilibrium with cystic fibrosis for markers surrounding D7S8

   • Michael Dean
   • Jean A. Amos
   • Michael C. Iannuzzi

   Original Investigation Pages: 275 - 278

6. HLA class I gene polymorphism in genetic hemochromatosis

   • Anne-Marie Jouanolle
   • Jacqueline Yaouanq
   • Véronique David

   Original Investigation Pages: 279 - 282

7. Risk of nonocular cancer in first-degree relatives of retinoblastoma patients

   • Jørgen H. Olsen
   • Jens Winther
   • Peter de Nully Brown

   Original Investigation Pages: 283 - 287

8. Somatic origin of inherited haemophilia A

   • Annette H. J. T. Bröcker-Vriends
   • Ernest Briët
   • Peter L. Pearson

   Original Investigation Pages: 288 - 292

9. Prenatal diagnosis of α-thalassemia by polymerase chain reaction and dual restriction enzyme analysis

   • Roger V. Lebo
   • Randall K. Saiki
   • Mitchell S. Golbus

   Original Investigation Pages: 293 - 299

10. Two mutations within the coding sequence of the phenylalanine hydroxylase gene

    • Elisabeth Svensson
    • Björn Andersson
    • Lars Hagenfeldt

    Original Investigation Pages: 300 - 304

11. Linkage relationships of the apolipoprotein C1 gene and a cytochrome P450 gene (CYP2A) to myotonic dystrophy

    • Kathryn V. Walsh
    • Helen G. Harley
    • Duncan J. Shaw

    Original Investigation Pages: 305 - 310

12. Inheritance of some electrophoretic phenotypes of human hair

    • M. Schimkat
    • M. P. Baur
    • J. Henke

    Original Investigation Pages: 311 - 314

13. Improved carrier detection of haemophilia A using novel RFLPs at the DXS115 (767) locus

    • P. Jedlicka
    • S. Greer
    • D. N. Cooper

    Original Investigation Pages: 315 - 318

14. DNA sequence analysis of the KM19 locus linked to cystic fibrosis

    • R. Anwar
    • K. Murray
    • A. F. Markham

    Original Investigation Pages: 319 - 323

15. Localisation of a dystrophin-related autosomal gene to 6q24 in man, and to mouse chromosome 10 in the region of the dystrophia muscularis (dy) locus

    • V. J. Buckle
    • J. L. Guenet
    • K. E. Davies

    Original Investigation Pages: 324 - 326

16. Distribution and characterization of a Sandhoff disease-associated 50-kb deletion in the gene encoding the human β-hexosaminidase β-chain

    • Hennie Bikker
    • Frank M. van den Berg
    • Piet A. Bolhuis

    Original Investigation Pages: 327 - 329

17. Pericentromeric structure of human X “isochromosomes”: evidence for molecular heterogeneity

    • Cecil B. Sharp
    • H. Melanie Bedford
    • Huntington F. Willard

    Original Investigation Pages: 330 - 336

18. Chromosomes 17 and 22 involved in marker formation in neurofibrosarcoma in von Recklinghausen disease

    • Hans-Joachim H. Decker
    • Linda A. Cannizzaro
    • Avery A. Sandberg

    Original Investigation Pages: 337 - 342

19. Gametic equilibrium between 24 polymorphic markers

    • Jaime L. Hernández
    • Robert C. Elston
    • Laura J. Ward

    Original Investigation Pages: 343 - 348

20. Polymorphism and mapping of the IGF1 gene, and absence of association with stature among African Pygmies

    • Anne Bowcock
    • Vittorio Sartorelli

    Original Investigation Pages: 349 - 354

21. Paternal age and trisomy among spontaneous abortions

    • Maureen Hatch
    • Jennie Kline
    • Dorothy Warburton

    Original Investigation Pages: 355 - 361

22. Immunochemical quantification of Cu/Zn superoxide dismutase in prenatal diagnosis of Down's syndrome

    • Tomas Porstmann
    • Roselotte Wietschke
    • Rüdiger von Baehr

    Original Investigation Pages: 362 - 366

23. Prenatal diagnosis of genodermatoses by ultrastructural diagnostic markers in extra-embryonic tissues: defective hemidesmosomes in amnion epithelium of fetuses affected with epidermolysis bullosa Herlitz type (an alternative prenatal diagnosis in certain cases)

    • Ingrid Hausser
    • Ingrun Anton-Lamprecht

    Original Investigation Pages: 367 - 375

24. Mapping the human gene coding for chromosomal protein HMG-17

    • Nicholas Popescu
    • David Landsman
    • Michael Bustin

    Short Communications Pages: 376 - 378

25. Premature centromere division of a translocation-carrier autosome

    • Károly Méhes
    • György Kosztolányi

    Short Communications Pages: 379 - 380

26. Characterisation of the alpha-1-antitrypsin M3 gene, a normal variant

    • Alexander Graham
    • Karen Hayes
    • Noor A. Kalsheker

    Short Communications Pages: 381 - 382

27. The human PDGF receptor α-subunit gene maps to chromosome 4 in close proximity to c-kit

    • R. G. K. Gronwald
    • D. A. Adler
    • D. F. Bowen-Pope

    Short Communications Pages: 383 - 385

28. Disomic homozygosity and leukemia in Down's syndrome

    • Raffaele Sansone
    • Mauro Pierluigi
    • Paolo Strigini

    Letters to the Editors Pages: 386 - 386

29. Factual, statistical and logical issues in the search for a paternal age effect for Down syndrome

    • Ernest B. Hook
    • Philip K. Cross
    • Ronald R. Regal

    Letters to the Editors Pages: 387 - 388

30. An update on the frequency of mucopolysaccharide syndromes in British Columbia

    • R. B. Lowry
    • D. A. Applegarth
    • N. Y. Thunem

    Letters to the Editors Pages: 389 - 390