The actin loci in the genus Drosophila: establishment of chromosomal homologies among five palearctic species of the Drosophila obscura group by in situ hybridization George P. BondinasMichael G. LoukasDiether Sperlich Original Article Pages: 441 - 450
The genomic complexity of micro B chromosomes of Brachycome dichromosomatica Andreas HoubenDawn VerlinJeremy N. Timmis Original Article Pages: 451 - 459
Non-isotopic mapping of ribosomal RNA synthesis and processing in the nucleolus David StaněkKarel KobernaIvan Raška Original Article Pages: 460 - 470
Disassembly of nuclear bodies during arousal from hibernation: an in vitro study Manuela MalatestaFrancesca LuchettiGiancarlo Gazzanelli Original article Pages: 471 - 477
Colchicine promotes a change in chromosome structure without loss of sister chromatid cohesion in prometaphase I-arrested bivalents Eva M. RodríguezMaria T. ParraJosé A. Suja Original Article Pages: 478 - 486
Electron microscope mapping of the pericentric and intercalary heterochromatic regions of the polytene chromosomes of the mutant Suppressor of underreplication in Drosophila melanogaster V. Semeshin E. Belyaeva I. Zhimulev Original Article Pages: 487 - 500
Lymphoblasts already in the DNA synthesis phase of the cell cycle can be reversibly arrested at the R/G transition Josée LavoieRégen Drouin Original Article Pages: 501 - 510