1. Preliminary exclusion of an X-linked gene in Leber optic atrophy by linkage analysis

   • Jia-De Chen
   • Ian Cox
   • Michael J. Denton

   Original Investigations Pages: 203 - 207

2. Mitochondrial DNA polymorphism in Finnish families with Leber's hereditary optic neuroretinopathy

   • Johanna Vilkki
   • Marja-Liisa Savontaus
   • Eeva K. Nikoskelainen

   Original Investigations Pages: 208 - 212

3. Interaction at clinical level between erythrocyte acid phosphatase and adenosine deaminase genetic polymorphisms

   • F. Gloria-Bottini
   • P. Lucarelli
   • E. Bottini

   Original Investigations Pages: 213 - 215

4. Isolation of a DNA probe of potential use for diagnosis of the fragile-X syndrome

   • N. Dahl
   • K. Hammarström-Heeroma
   • U. Pettersson

   Original Investigations Pages: 216 - 218

5. Molecular characterization of a ring chromosome 14 showing that the PI locus is centromeric to the D14S1 and IGH loci

   • Genoveva Keyeux
   • Simone Gilgenkrantz
   • Marie-Paule Lefranc

   Original Investigations Pages: 219 - 222

6. The human cystatin C gene (CST3), mutated in hereditary cystatin C amyloid angiopathy, is located on chromosome 20

   • Magnus Abrahamson
   • M. Quamrul Islam
   • Göran Levan

   Original Investigations Pages: 223 - 226

7. Digoxigenated oligonucleotide probes specific for simple repeats in DNA fingerprinting and hybridization in situ

   • Hans Zischler
   • Indrajit Nanda
   • Jörg T. Epplen

   Original Investigations Pages: 227 - 233

8. The gene coding for the p68 calcium-binding protein is localised to bands q32–q34 of human chromosome 5, and to mouse chromosome 11

   • Adelina A. Davies
   • Stephen E. Moss
   • Michael J. Crumpton

   Original Investigations Pages: 234 - 238

9. Pregnancy-specific β1-glycoprotein: cDNA cloning, tissue expression, and species specificity of one member of the PSβG family

   • S. C. Niemann
   • A. Flake
   • I. Bartels

   Original Investigations Pages: 239 - 243

10. Investigation of the “variable spreading” of X inactivation into a translocated autosome

    • Stefan Schanz
    • Peter Steinbach

    Original Investigations Pages: 244 - 248

11. Restriction analysis of chromosomal sequences homologous to single-copy fragments cloned from small polydisperse circular DNA (spcDNA)

    • Günter Assum
    • Brigitte Böckle
    • Winfrid Krone

    Original Investigations Pages: 249 - 254

12. The frequency and origin of the sickle cell mutation in the district of Coruche/Portugal

    • C. Monteiro
    • J. Rueff
    • A. E. Kulozik

    Original Investigations Pages: 255 - 258

13. Frequency of heterozygous complete hydatidiform moles, estimated by locus-specific minisatellite and Y chromosome-specific probes

    • Rosemary A. Fisher
    • Susan Povey
    • Sylvia D. Lawler

    Original Investigations Pages: 259 - 263

14. Molecular cloning of the translocation breakpoint in T-ALL 11;14 (p13;q11): genomic map of TCR alpha and delta region on chromosome 14q11 and long-range map of region 11p13

    • Brigitte Royer-Pokora
    • Brigitte Fleischer
    • Dorothea Williams

    Original Investigations Pages: 264 - 270

15. A rapid method for detection of Y-chromosomal DNA from dried blood specimens by the polymerase chain reaction

    • Michal Witt
    • Robert P. Erickson

    Original Investigations Pages: 271 - 274

16. Dose-response function for Painter's SCE-model

    • Gabriel A. Schachtel
    • Wolfgang Köhler

    Original Investigations Pages: 275 - 278

17. Assignment of human aldolase C gene to chromosome 17, region cen→q21.1

    • Mariano Rocchi
    • Emilia Vitale
    • Francesco Salvatore

    Short Communications Pages: 279 - 282

18. The factor IX BamHI polymorphism: T-to-G transversion at the nucleotide sequence-561

    • Min Zhang
    • Shi-Han Chen
    • Arthur R. Thompson

    Short Communications Pages: 283 - 284

19. Identification of a common molecular basis for combined 17α-hydroxylase/17,20-lyase deficiency in two Mennonite families

    • Keiko Kagimoto
    • Michael R. Waterman
    • Jeremy S. D. Winter

    Short Communications Pages: 285 - 286

20. Close linkage of MEN2A with RBP3 locus in Japanese kindreds

    • Masayuki Yamamoto
    • Shin-ichiro Takai
    • Takesada Mori

    Short Communications Pages: 287 - 288

21. Specific amplification of the ZFY gene to screen sex in man

    • Cecilia Ebensperger
    • Roland Studer
    • Jörg T. Epplen

    Short Communications Pages: 289 - 290

22. Life tables for Down syndrome

    • Patricia A. Baird
    • Adele D. Sadovnick

    Short Communications Pages: 291 - 292

23. Four variants of human plasma α₂-glycoprotein (ZAG) in the Japanese population

    • N. Nakayashiki
    • S. Katsura

    Short Communications Pages: 293 - 295

24. Pure partial trisomy of the short arm of chromosome 5

    • Marie Odile Rethoré
    • Marie Christine de Blois
    • J. Lejeune

    Clinical Case Reports Pages: 296 - 298

25. Dicarboxylic aminoaciduria associated with mental retardation

    • M. Swarna
    • D. N. Rao
    • P. P. Reddy

    Clinical Case Reports Pages: 299 - 300

26. Recurrences of trisomy 18 and trisomy 13 after trisomy 21

    • D. R. FitzPatrick
    • E. Boyd

    Case Observed Pages: 301 - 301

27. Renin locus restriction fragment length polymorphism

    • Liang Zhong Chen
    • Simon Easteal

    Rare Genetic Variant Register Pages: 302 - 302

28. X-Chromatin fluorescence in maternal blood

    • A. Selypes
    • Rózsa Lorencz
    • S. Takács

    Letter to the Editors Pages: 303 - 303

29. Announcements

    Announcement Pages: 304 - 304