Preface. 1. Aspects of Tandemly Organized, Repetitive Sequences in Chromosomal DNA; J.T. Epplen, A. Epplen-Haupt. 2. Mapping and Organization of Highly-Repeated Sequences by Means of Fluorescence in situ Hybridization Against Synaptonemal Complex-Associated Chromatin of Rye; N. Cunado, et al. 3. Some Insights on the Mechanism of in situ DNA Digestion by Restriction Enzymes and on Fluorochrome Banding: Case of the Argentata group; J.C. Pierzarka, M.S. Mattevi. 4. Structural Differences of Chromosomes in Plants Detected by Fluorescence in situ Hybridization Using Probes of rDNA, Arabidopsis-type Telomere Sequence Repeats and pCrT7-4; K. Kondo, et al. 5. Planococcus citri (Homoptera. Coccoidea): A Paradigmatic Case of Chromosome Structure as an Epigenetic Way to Control Gene Expression; M. Ferraro. 6. Cytogenetic and Molecular Analysis of Heterochromatic Areas in the Holocentric Chromosomes of Different Aphid Species; G.C. Manicardi, et al. 7. Translocation Frequencies for X and Y Chromosomes Predicted by Computer Simulations of Nuclear Structure; G. Kreth, et al. 8. Evolution of DNA Repair Mechanisms; B. Kaina, et al. 9. Cytogenetics of Lepidopteran Insects; V.L. Sharma, R.C. Sobti. 10. Chromosome Structure in Fishes; C. Oliveira, et al. 11. A Review of Chromosome Banding in Fishes; O.P. Sharma, et al. 12. Chromosomes in Birds; V.L. Sharma, R.C. Sobti. 13. Chromosomal Analysis in Human Population Monitoring; G. Wolf, H. Fender. 14. Genotoxic Investigations on Occupationally Exposed Cattle Yard Workers; J.S. Yadav, V.K. Kaushik. 15. Telomeres, Telomerase and Cancer; R.S. Sobti, et al. 16. Chromosomal Radio- sensitivity as an Indicator of Genetic Predisposition to Breast Cancer; R. Parshad, K.K. Sanford. 17. Molecular Genetics of Gastrointestinal Tract Cancers; R.C. Sobti, et al. 18. Molecular Pathogenesis of Lung Cancer; R.C. Sobti, et al. 19. Bladder Cancer: Genetic and Epidemiological Factors Involved in its Genesis; R.C. Sobti, et al. 20. Molecular Genetics of Prostate Cancer; R.C. Sobti, et al. Index.