1. Further segregation analysis of the fragile X syndrome with special reference to transmitting males

   • S. L. Sherman
   • P. A. Jacobs
   • M. Watson

   Original Investigations Pages: 289 - 299

2. Localization of the β-globin gene to 11p15 by in situ hybridization: Utilization of chromosome 11 rearrangements

   • R. Ellen Magenis
   • Timothy A. Donlon
   • Diane R. Tomar

   OriginalPaper Pages: 300 - 303

3. Regional chromosome mapping of human collagen genes alpha 2(I) and alpha 1(I) (COLIA2 and COLIA1)

   • E. Retief
   • M. I. Parker
   • A. E. Retief

   OriginalPaper Pages: 304 - 308

4. Cytogenetic analyses utilizing various clastogens in two sibs with Fanconi anemia, their relatives, and control individuals

   • E. Gebhart
   • D. Kysela
   • M. Nikol

   OriginalPaper Pages: 309 - 315

5. Mapping parathyroid hormone, β-globin, insulin, and LDH-A genes within the human chromosome 11 short arm by spot blotting sorted chromosomes

   • Roger V. Lebo
   • Mei-Chi Cheung
   • Yuet Wai Kan

   OriginalPaper Pages: 316 - 320

6. On the significance of true trisomy 20 mosaicism in amniotic fluid culture

   • M. Djalali
   • P. Steinbach
   • M. Wolf

   OriginalPaper Pages: 321 - 326

7. Localization by in situ hybridization of the coagulation factor IX gene and of two polymorphic DNA probes with respect to the fragile X site

   • M. G. Mattei
   • M. A. Baeteman
   • J. F. Mattei

   OriginalPaper Pages: 327 - 331

8. Progressive muscular dystrophy (Duchenne): Biochemical studies by flow-cytometry

   • M. Hirsch-Kauffmann
   • G. Valet
   • M. Schweiger

   OriginalPaper Pages: 332 - 336

9. DNA polymorphism in the 5′ flanking region of the human carbonic anhydrase II gene on chromosome 8

   • Bailey L. Lee
   • Patrick J. Venta
   • Richard E. Tashian

   OriginalPaper Pages: 337 - 339

10. The chromosomal localization of human β-galactosidase revisited: a locus for β-galactosidase on human chromosome 3 and for its protective protein on human chromosome 22

    • H. J. Sips
    • H. A. de Wit-Verbeek
    • H. Galjaard

    OriginalPaper Pages: 340 - 344

11. Isolation and characterisation of a cDNA clone for human apolipoprotein CI and assignment of the gene to chromosome 19

    • F. Tata
    • I. Henry
    • S. E. Humphries

    OriginalPaper Pages: 345 - 349

12. Polymorphism of Ag-stained nucleolus organizer regions in lymphocytes of patients with ovarian or breast adenocarcinoma

    • S. Kivi
    • A. -V. Mikelsaar

    OriginalPaper Pages: 350 - 352

13. Forty four probands with an additional “marker” chromosome

    • K. E. Buckton
    • G. Spowart
    • H. J. Evans

    OriginalPaper Pages: 353 - 370

14. Assignment of human ferritin genes to chromosomes 11 and 19q13.3→19qter

    • M. Worwood
    • J. D. Brook
    • D. J. Shaw

    OriginalPaper Pages: 371 - 374

15. α°- and β°- Thalassemia in a Thai family: unusually mild homozygous β°-thalassemia without α-globin gene deletion

    • P. Yenchitsomanus
    • K. M. Summers

    OriginalPaper Pages: 375 - 377

16. Lysosomal hydrolase activity in chorionic villi and embryonic cells in culture

    • Livia Poenaru
    • Laetitia Castelnau
    • F. Thepot

    Short Communication Pages: 378 - 379

17. Maternal metaphases on direct chromosome preparation of first trimester decidua

    • Karin J. Blakemore
    • Joan Samuelson
    • M. J. Mahoney

    Letter to the Editors Pages: 380 - 380

18. A polymalformed baby born to karyotypically normal parents

    • K. Benson
    • M. Gordon

    Cases Observed Pages: 381 - 381