1. Gm and Km allotypes in 74 Chinese populations: a hypothesis of the origin of the Chinese nation

   • Tongmao Zhao
   • Tsung Dao Lee

   Original Investigations Pages: 101 - 110

2. Sister chromatid exchange analysis of the 15q11 region in Prader-Willi syndrome patients

   • Sharon L. Wenger
   • Samuel D. Rauch
   • Jeanne M. Hanchett

   Original Investigations Pages: 111 - 114

3. Rejoining between 9q+ and Philadelphia chromosomes results in normal-looking chromosomes 9 and 22 in Ph¹-negative chronic myelocytic leukemia

   • Johji Inazawa
   • Hikari Nishigaki
   • Tatsuo Abe

   Original Investigations Pages: 115 - 118

4. Inheritance of mitochondrial aldehyde dehydrogenase: genotyping in Chinese, Japanese and South Korean families reveals dominance of the mutant allele

   • Surjit Singh
   • Gernot Fritze
   • H. Werner Goedde

   Original Investigations Pages: 119 - 121

5. Characterization of patients with glycerol kinase deficiency utilizing cDNA probes for the Duchenne muscular dystrophy locus

   • Jeffrey A. Towbin
   • Darong Wu
   • Edward R. B. McCabe

   Original Investigations Pages: 122 - 126

6. Localization of polymorphic DNA probes frequently deleted in lung carcinoma

   • Donna G. Albertson
   • Paul D. Sherrington
   • Pamela H. Rabbitts

   Original Investigations Pages: 127 - 132

7. Heterogeneity of chromosomal breakage levels in epithelial tissue of ataxia-telangiectasia homozygotes and heterozygotes

   • Miriam P. Rosin
   • H. D. Ochs
   • E. Boder

   Original Investigations Pages: 133 - 138

8. Mapping studies of the serum cholinesterase-2 locus (CHE2)

   • Mary L. Marazita
   • Bronya J. B. Keats
   • Michol Crist

   Original Investigations Pages: 139 - 144

9. Increased frequencies of sister chromatid exchanges at common fragile sites (1)(q42) and (19)(q13)

   • W. Feichtinger
   • M. Schmid

   Original Investigations Pages: 145 - 147

10. Familial ring (20) chromosomal mosaicism

    • E. Back
    • I. Voiculescu
    • G. Wolff

    Original Investigations Pages: 148 - 154

11. Epigenetic changes may contribute to the formation and spontaneous regression of retinoblastoma

    • Valerie Greger
    • Eberhard Passarge
    • Bernhard Horsthemke

    Original Investigations Pages: 155 - 158

12. Chromosomal localization of human aspartate aminotransferase genes by in situ hybridization

    • S. Pol
    • B. Bousquet-Lemercier
    • R. Barouki

    Original Investigations Pages: 159 - 164

13. Increased spindle resistance to antimicrotubule agents in cells prone to chromosomal nondisjunction

    • Lydia Avivi
    • Aviva Dotan
    • Yoram Neumann

    Original Investigations Pages: 165 - 170

14. DNA haplotypes and frameworks linked to the β-globin locus in an Austro-Asiatic population with a high prevalence of hemoglobin E

    • P. Yongvanit
    • P. Sriboonlue
    • G. Flatz

    Original Investigations Pages: 171 - 174

15. Linkage disequilibrium for DNA haplotypes near the cystic fibrosis locus in two South European populations

    • X. Estivill
    • P. Gasparini
    • P. F. Pignatti

    Original Investigations Pages: 175 - 178

16. Regional localization of human ecto-5′nucleotidase to chromosome 6q14–q21

    • J. M. Boyle
    • Y. Hey
    • M. Fox

    Original Investigations Pages: 179 - 180

17. Cytosine methylation and the fate of CpG dinucleotides in vertebrate genomes

    • David N. Cooper
    • Michael Krawczak

    Original Investigations Pages: 181 - 188

18. Different Hoechst 33342 and DAPI fluorescence of the human Y chromosome in bivariate flow karyotypes

    • Alain Bernheim
    • Roger Miglierina

    Original Investigations Pages: 189 - 193

19. The human homolog of the myeloproliferative virus maps to chromosome band 1p34

    • Maryvonne Le Coniat
    • Michèle Souyri
    • Roland Berger

    Short Communications Pages: 194 - 196

20. Genetic polymorphism of human peptidase C, PEPC (E.C.3.4.1.1): formal genetic and population data

    • J. Kömpf
    • M. J. Prata
    • A. Amorim

    Short Communications Pages: 197 - 198

21. RELP-discordance within the human phenylalanine hydroxylase locus

    • Olaf Riess
    • Adelheid Michel
    • Charles Coutelle

    Short Communications Pages: 199 - 201

22. An unusual translocation associated with recurrent spontaneous abortions

    • M. Gregori-Romero
    • R. Gil
    • A. Pellín

    Cases Observed Pages: 202 - 202

23. Congenital hyperthyroidism with reciprocal translocation t(1;17)(q25;q21)

    • M. Gregori-Romero
    • C. López-Ginés
    • A. Pellín

    Cases Observed Pages: 203 - 203

24. Restriction fragment length polymorphism of human aldehyde dehydrogenase 1 and aldehyde dehydrogenase 2 loci

    • Akira Yoshida
    • Shi-Han Chen

    Rare Genetic Variant Register Pages: 204 - 204

25. On the parental origin of the deletion in Angelman syndrome

    • Joan H. M. Knoll
    • Robert D. Nicholls
    • Marc Lalande

    Letters to the Editors Pages: 205 - 206

26. Reply to letter by Knoll et al.

    • Timothy A. Donlon

    Letters to the Editors Pages: 207 - 207

27. Non-random aberrant breakpoints in chronic myelogenous leukaemia revisited

    • J. L. Huret
    • J. Tanzer

    Letters to the Editors Pages: 208 - 208