Drosophila subobscura in Egypt and its probable derivation G. BächliH. BurlaH. Jungen OriginalPaper Pages: 3 - 7
Patterns of polytene-chromosome replication in Simulium ornatipes (Diptera: Simuliidae) D. G. Bedo OriginalPaper Pages: 9 - 21
Holocentric chromosomes of arachnids: Presence of kinetochore plates during meiotic divisions R. Benavente OriginalPaper Pages: 23 - 27
Inter-embryo competition in the progeny of autotriploid Aloineae (Liliaceae) P. E. Brandham OriginalPaper Pages: 29 - 42
Population genetics in the American tropics XVII. The biogeographical position and the sampling technique as parameters of genetic loads in Drosophila H. F. HoenigsbergM. M. E. De PolancoC. A. Monje OriginalPaper Pages: 43 - 51
Adaptive microgeographic differentiation of allozyme polymorphism in landsnails E. NevoC. Bar-ElY. Yom-Tov OriginalPaper Pages: 61 - 67
Variation in the abillties of different strains of Drosophila melanogaster to utilize diverse carbon sources B. Wallace OriginalPaper Pages: 69 - 79