1. Dosage compensation in mammals: Why does a gene on the inactive X yield less product than one on the active X?

   • Orlando J. Miller

   Review Article Pages: 97 - 101

2. Identification of a case of Y:18 translocation using a Y-specific repetitive DNA probe

   • Y. -F. Lau
   • K. L. Ying
   • G. N. Donnell

   Original Investigations Pages: 102 - 105

3. Manifestation of the fragile site Xq27 in fibroblasts

   • G. Barbi
   • P. Steinbach
   • W. Vogel

   Original Investigations Pages: 106 - 108

4. Further regional localization of the genes for human acid alpha glucosidase (GAA), peptidase D (PEPD), and alpha mannosidase B (MANB) by somatic cell hybridization

   • Frank Martiniuk
   • Amy Ellenbogen
   • Rochelle Hirschhorn

   Original Investigations Pages: 109 - 111

5. Fragile sites and structural rearrangements in cancer

   • M. De Braekeleer
   • B. Smith
   • C. C. Lin

   Original Investigations Pages: 112 - 116

6. In situ nick translation of metaphase chromosomes with biotin-labeled d-UTP

   • Sabine Adolph
   • Horst Hameister

   Original Investigations Pages: 117 - 121

7. New data on the in situ position of the inactive X chromosome in the interphase nucleus of human fibroblasts

   • C. A. Bourgeois
   • F. Laquerriere
   • M. Bouteille

   Original Investigations Pages: 122 - 129

8. Level of translatable messenger RNA coding for argininosuccinate synthetase in the liver of the patients with quantitative-type citrullinemia

   • Mariko Sase
   • Keiko Kobayashi
   • Masataka Mori

   Original Investigations Pages: 130 - 134

9. A male with a monocentric Yq isochromosome and presence of a Yp-specific DNA sequence

   • J. Schmidtke
   • J. Arnemann
   • I. Hansmann

   Original Investigations Pages: 135 - 137

10. The human thyroglobulin gene: A polymorphic marker localized distal to C-MYC on chromosome 8 band q24

    • F. Baas
    • H. Bikker
    • G. -J. B. van Ommen

    Original Investigations Pages: 138 - 143

11. Detection of a restriction site polymorphism within the human α-globin gene complex

    • G. Assum
    • E. -U. Griese
    • J. Horst

    Original Investigations Pages: 144 - 146

12. AB0 blood group incompatibility and inbreeding effects: Evidence for an interaction

    • R. Renuka Nair
    • J. S. Murty

    Original Investigations Pages: 147 - 150

13. Intercellular NOR-Ag-variability in man. II. Search for determining factors, clonal analysis

    • O. A. Sozansky
    • A. F. Zakharov
    • S. M. Terekhov

    Original Investigations Pages: 151 - 156

14. The human gene encoding insulin-like growth factor I is located on chromosome 12

    • J. W. M. Höppener
    • P. de Pagter-Holthuizen
    • J. S. Sussenbach

    Original Investigations Pages: 157 - 160

15. Supernumerary microchromosomes identified as inverted duplications of chromosome 15: A report of three cases

    • L. P. Wisniewski
    • R. A. Doherty

    Original Investigations Pages: 161 - 163

16. Improved identification of heterozygotes for homocystinuria due to cystathionine synthase deficiency by the combination of methionine loading and enzyme determination in cultured fibroblasts

    • Godfried H. J. Boers
    • B. Fowler
    • P. W. C. Kloppenborg

    Original Investigations Pages: 164 - 169

17. Chromosomal localization and preliminary characterization of the human gene encoding insulin-like growth factor II

    • P. de Pagter-Holthuizen
    • J. W. M. Höppener
    • J. S. Sussenbach

    Original Investigations Pages: 170 - 173

18. Hereditary hepatic porphyria with delta aminolevulinate dehydrase deficiency: Immunologic characterization of the non-catalytic enzyme

    • Hubert de Verneuil
    • Manfred Doss
    • Yves Nordmann

    Original Investigations Pages: 174 - 177

19. Human chromosome variation with two Robertsonian translocations

    • Rodman Morgan
    • Helen Bixenman
    • Frederick Hecht

    Original Investigations Pages: 178 - 180

20. Two subtypes of BfF by isoelectrofocusing: Differential linkage to other HLA markers

    • M. Abbal
    • M. Thomsen
    • D. Fathallah

    Original Investigations Pages: 181 - 183

21. Geographical variability of alpha-1-antitrypsin alleles in China: A study on six Chinese populations

    • Ying Qi-long
    • Zhang Mei-lin
    • Muo Xi-ping

    Original Investigations Pages: 184 - 187

22. Association between a genetic trait and a marker: Discrimination between epistasis and gametic disequilibrium

    • F. Clerget-Darpoux
    • G. M. Lathrop

    Short Communications Pages: 188 - 189

23. The α₁ antitrypsin variant PI*WFINNEYTOWN in a family of Caucasian origin

    • E. C. Klasen
    • C. D. Laros
    • R. R. Frants

    Short Communications Pages: 190 - 191

24. Clotting factors VII and X as useful markers of terminal deletion of chromosome 13

    • R. A. Pfeiffer
    • R. Ott
    • K. D. Taben

    Letters to the Editors Pages: 192 - 192

25. Partial trisomy 22—an old case reexamined

    • György Kosztolányi
    • Erica M. Bühler

    Letters to the Editors Pages: 193 - 194

26. No difference in dermatoglyphics of fingers and palms between phenylketonuria patients and controls

    • Ch. Steffens

    Letters to the Editors Pages: 195 - 195