1. Publication of DNA variants

   Editorial Pages: 195 - 195

2. Isolation of DNA sequences on human chromosome 21 by application of a recombination-based assay to DNA from flow-sorted chromosomes

   • Umadevi Tantravahi
   • Gordon D. Stewart
   • Samuel A. Latt

   Original Investigations Pages: 196 - 202

3. Three major cytogenetic subgroups can be identified among chromosomally abnormal solitary lipomas

   • Nils Mandahl
   • Sverre Heim
   • Felix Mitelman

   Original Investigations Pages: 203 - 208

4. Polymorphism of MHC class III genes: definition of restriction fragment linkage groups and evidence for frequent deletions and duplications

   • N. Ghanem
   • B. Uring-Lambert
   • G. Lefranc

   Original Investigations Pages: 209 - 218

5. Linkage analysis using multiple DNA polymorphic markers in normal families and in families with fragile X syndrome

   • S. N. Thibodeau
   • H. R. Dorkins
   • K. E. Davies

   Original Investigations Pages: 219 - 227

6. Analysis for linkage between F13A and three chromosome 6 marker loci: evidence for 6pter: F13A:HLA:GL01:cen gene order

   • P. Wong
   • L. Komarnicki
   • P. J. McAlpine

   Original Investigations Pages: 228 - 230

7. Spermatogenesis in two patients with the fragile X syndrome

   • R. Johannisson
   • U. Froster-Iskenius
   • M. A. Hulten

   Original Investigations Pages: 231 - 234

8. cDNA cloning, expression and mapping of human laminin B2 gene to chromosome 1q31

   • Marie-Geneviève Mattei
   • Dominique Weil
   • Mon-Li Chu

   Original Investigations Pages: 235 - 241

9. Effect of caffeine in Fanconi anemia

   • Laure Sabatier
   • Bernard Dutrillaux

   Original Investigations Pages: 242 - 244

10. Type I procollagen in the severe non-lethal form of osteogenesis imperfecta

    • Ruggero Tenni
    • Giuseppe Cetta
    • Alessandro A. Castellani

    Original Investigations Pages: 245 - 250

11. A recombinant X chromosome in a short statured girl resulting from a maternal pericentric inversion

    • D. P. Duckett
    • I. D. Young

    Original Investigations Pages: 251 - 254

12. Comparison between the allelic frequency distribution of the Ha-ras 1 locus in normal individuals and patients with lymphoma, breast, and ovarian cancer

    • B. Corell
    • B. Zoll

    Original Investigations Pages: 255 - 259

13. The human tyrosine aminotransferase gene: characterization of restriction fragment length polymorphisms and haplotype analysis in a family with tyrosinemia type II

    • Eva-Maria Westphal
    • Ernst Natt
    • Gerd Scherer

    Original Investigations Pages: 260 - 264

14. Human satellite-III DNA: an example of a “macrosatellite” polymorphism

    • C. Fowler
    • R. Drinkwater
    • L. Burgoyne

    Original Investigations Pages: 265 - 272

15. A complete deletion of the factor IX gene and new TaqI variant in a hemophilia B kindred

    • S. A. M. Taylor
    • D. P. Lillicrap
    • B. N. White

    Original Investigations Pages: 273 - 276

16. Restriction fragment length polymorphisms detected by anonymous DNA probes mapped to defined intervals of human chromosome 16

    • V. J. Hyland
    • S. Grist
    • G. R. Sutherland

    Original Investigations Pages: 277 - 279

17. Molecular analysis of a reciprocal translocation t(5;11)(q11;p13) in a WAGR patient

    • Hugues Puissant
    • Martine Azoulay
    • Claudine Junien

    Original Investigations Pages: 280 - 282

18. Regional chromosomal localisation of APOA2 to 1q21–1q23

    • H. R. Middleton-Price
    • J. A. van den Berghe
    • S. Malcolm

    Original Investigations Pages: 283 - 285

19. Increased amounts of small polydisperse circular DNA (spcDNA) in angiofibroma-derived cell cultures from patients with tuberous sclerosis (TS)

    • C. Neidlinger
    • G. Assum
    • G. Klotz

    Short Communications Pages: 286 - 288

20. Linkage between the variegate porphyria (VP) and the alpha-1-antitrypsin (PI) genes on human chromosome 14

    • S. Bissbort
    • H. W. Hitzeroth
    • K. Bender

    Short Communications Pages: 289 - 290