A developmental study of constitutive heterochromatin in Microtus agrestis J. C. LeeJorge J. Yunis OriginalPaper Pages: 237 - 250
Chromatin and histones in mealy bug cell explants: activation and decondensation of facultative heterochromatin by a synthetic polyanion Gary MillerLaurence BerlowitzWilliam Regelson OriginalPaper Pages: 251 - 261
Architecture of the Chinese hamster metaphase chromosome Elton StubblefieldWayne Wray OriginalPaper Pages: 262 - 294
Male germ line, spermatogenesis and karyotypes of Heteropeza pygmaea winnertz (Diptera: Cecidomyiidae) Samuel Panelius OriginalPaper Pages: 295 - 331
Oogenesis and chromosomal heterozygosity in the thelytokous midge, Lundstroemia parthenogenetica (Diptera, Chironomidae) D. L. Porter OriginalPaper Pages: 332 - 342