1. Polyploidy and sterility in relation to sex in Dioscorea alata L. (Dioscoreaceae)

   • K. Abraham
   • P. Gopinathan Nair

   OriginalPaper Pages: 93 - 97

2. The involvement of alcohol dehydrogenase and aldehyde dehydrogenase in alcohol/aldehyde metabolism in Drosophila melanogaster

   • S. M. Anderson
   • S. E. Barnett

   OriginalPaper Pages: 99 - 106

3. On the karyotypes of the Neorhabdocoela species and karyological evolution of Turbellaria

   • V. J. Birstein

   OriginalPaper Pages: 107 - 120

4. Identification of the Z-W bivalent in the silkworm, Bombyx mori

   • N. Kawamura
   • T. Niino

   OriginalPaper Pages: 121 - 123

5. The B-chromosome in the karyotype of Tetrix tenuicornis (Sahlb.) (Tetrigidae: Orthoptera)

   • A. Maryańska-Nadachowska
   • E. Warchałowska-Śliwa

   OriginalPaper Pages: 125 - 129

6. Chromosomal polymorphism and small karyotypic differentiation in a group of Ctenomys species from Central Argentina (Rodentia: Octodontidae)

   • A. I. Massarini
   • M. A. Barros
   • O. A. Reig

   OriginalPaper Pages: 131 - 144

7. Karyotype differentiation among members of the immigrans species group of Drosophila

   • P. Meera Rao
   • H. A. Ranganath

   OriginalPaper Pages: 145 - 152

8. Chromosome banding study of European catfish, Silurus glanis (Pisces, Siluridae)

   • P. Rábl
   • B. Mayr
   • P. Roth

   OriginalPaper Pages: 153 - 157

9. Karyotype analysis, nucleolus organizer regions and C-banding pattern of Eisenia foetida (oligochaeta, lumbricidae)

   • R. Vitturi
   • D. Colombera
   • F. P. Amico

   OriginalPaper Pages: 159 - 165

10. B chromosome polymorphism in populations of Apodemus flavicollis in Yugoslavia

    • M. Vujosevié
    • J. Blagojević
    • D. Bejakovié

    OriginalPaper Pages: 167 - 170