Chromosome studies of a donkey-grevy zebra hybrid K. BenirschkeR. J. LowJ. de Venecia-Fernandez OriginalPaper Pages: 1 - 13
X-autosome ratio and the behavior pattern of individual X-chromosomes in placental mammals Susumu OhnoWilly BeçakMaria Luiza Beçak OriginalPaper Pages: 14 - 30
Polyploidy and polyteny induced by a hymenopteran parasite in Dasyneura urticae (Diptera, Cecidomyiidae) Bohdan Matuszewski OriginalPaper Pages: 31 - 35
Zellphysiologische Mechanismen bei der Regulation von Genaktivitäten in den Riesenchromosomen von Chironomus thummi Heinrich Kroeger OriginalPaper Pages: 36 - 70