1. Editorial

   • Herbert Macgregor

   EditorialNotes Pages: 3 - 3

2. Hot off the screen

   EditorialNotes Pages: 4 - 4

3. The distribution of topoisomerase II on mammalian chromosomes

   • A. T. Sumner

   OriginalPaper Pages: 5 - 14

4. Molecular analysis of the structure of the maize B-chromosome

   • Elizabeth A. Stark
   • Ian Connerton
   • John W. Forster

   OriginalPaper Pages: 15 - 23

5. Preparation of tomato meiotic pachytene and mitotic metaphase chromosomes suitable for fluorescencein situ hybridization (FISH)

   • Xiao-Bo Zhong
   • J. Hans de Jong
   • Pim Zabel

   OriginalPaper Pages: 24 - 28

6. Chromosome complement, C-banding, Ag-NOR and replication banding in the zebrafishDanio reio

   • Rafael R. Daga
   • Guillermo Thode
   • Angel Amores

   OriginalPaper Pages: 29 - 32

7. Mapping of 22Notl linking clones on human chromosome 3 by polymerase chain reaction and somatic cell hybrid panels

   • R. Allikmets
   • V. I. Kashuba
   • E. R. Zabarovsky

   OriginalPaper Pages: 33 - 37

8. Comparative fluorescencein situ hybridization mapping of primate chromosomes withAlu polymerase chain reaction generated probes from human/rodent somatic cell hybrids

   • S. Müller
   • U. Koehler
   • N. Archidiacono

   OriginalPaper Pages: 38 - 42

9. Achiasmate segregation of X and B univalents in males of the grasshopperEyprepocnemis plorans is independent of previous association

   • M. D. López-León
   • J. Cabrero
   • J. P. M. Camacho

   OriginalPaper Pages: 43 - 48

10. The chromosomal distribution and organization of sheep satellite I and II centromeric DNA using characterized sheep-hamster somatic cell hybrids

    • Dean J. Burkin
    • Thomas E. Broad
    • Carol Jones

    OriginalPaper Pages: 49 - 55

11. Patterns of DNase I sensitivity in the chromosomes of the grasshopperChorthippus parallelus (Orthoptera)

    • J. de la Torre
    • P. Herrero
    • J. Gosálvez

    OriginalPaper Pages: 56 - 60

12. Analysis using dual-colour fluorescencein situ hybridization of meiotic chromosome segregation in male mice heterozygous for a reciprocal translocation

    • Charles Tease

    OriginalPaper Pages: 61 - 68

13. Chiasma localization, heterochromatin and synaptonemal complexes in the grasshopperPyrgomorpha conica

    • A. L. del Cerro
    • A. Fernández
    • J. L. Santos

    OriginalPaper Pages: 69 - 76

14. G-banding and chromosome condensation in the ant,Tapinoma nigerrimum

    • P. Lorite
    • E. Chica
    • T. Palomeque

    Short Communication Pages: 77 - 79

15. Human chromosomes: Manual of basic techniques (2nd edition)

    • Sharon M. Bain

    Book Review Pages: 80 - 81

16. Inhibitor of T-lymphocyte apoptosis (ITA) map position IIq22

    • J. K. Nicholl
    • R. I. Richards
    • M. R. Digby

    Human Gene Mapping Report Pages: 81 - 81

17. Forthcoming meetings

    Events Pages: 82 - 82

18. Apolipoprotein X mRNA processing enzyme map position 13q31.2

    • G. F. Fallow
    • N. M. Highton
    • D. H. Pantling

    Human Gene Mapping Report Pages: 84 - 84