Anaphase chromosome movement in the unequally dividing grasshopper neuroblast and its relation to anaphases of other cells J. Gordon Carlson OriginalPaper Pages: 191 - 206
Chromosomes of antelope squirrels (genus Ammospermophilus): A systematic banding analysis of four species with unusual constitutive heterochromatin J. T. MascarelloJ. A. Mazrimas OriginalPaper Pages: 207 - 217
Heterochromatin variation in Cryptobothrus chrysophorus Bernard JohnMax King OriginalPaper Pages: 219 - 239
The effects of ageing on the meiotic chromosomes of male and female mice R. M. Speed OriginalPaper Pages: 241 - 254
An ultrastructural cytogenetic study on the evolution of sex chromosomes during the spermatogenesis of Lycosa malitiosa (Arachnida) Ricardo BenaventeRodolfo Wettstein OriginalPaper Pages: 255 - 277
The repetition frequency of DNA in Balbiani ring 2 of Chironomus thummi Ulrich WobusEdgar Serfling OriginalPaper Pages: 279 - 286
18 μm replication units of chromosomal DNA fibers of differentiated cells of Pea (Pisum sativum) J. Van't HofC. A. Bjerknes OriginalPaper Pages: 287 - 294