Seasonal variation of chiasma frequency in Phyllodactylus marmoratus (Gray) (Gekkonidae — Reptilia) Max KingDavid Hayman OriginalPaper Pages: 131 - 154
Change in length of synapsed bivalents during pachytene Marjorie P. Maguire OriginalPaper Pages: 155 - 162
Analysis of exchanges in differentially stained meiotic chromosomes of Locusta migratoria after BrdU-substitution and FPG staining C. TeaseG. H. Jones OriginalPaper Pages: 163 - 178
Chromosomal isolabelling caused by three rounds of synthesis in late replicating regions Sheldon WolffJudy BodycoteBrita Rodin OriginalPaper Pages: 179 - 183
Cytological identification of two X-chromosome types in the wood lemming (Myopus schisticolor) Eberhard W. HerbstKarl FredgaAlfred Gropp OriginalPaper Pages: 185 - 191
Distribution of heterochromatin in a reconstructed karyotype of Vicia faba as identified by banding- and DNA-late replication patterns Peter DöbelIngo SchubertRigomar Rieger OriginalPaper Pages: 193 - 209
The consequences of an unusual Robertsonian translocation in celery (Apium graveolens var dulce) G. E. Marks OriginalPaper Pages: 211 - 218
Localized euchromatinization of the X chromosome during spermatogenesis in the grasshopper Melanoplus femur-rubrum Uzi Nur OriginalPaper Pages: 219 - 229
On the mechanism of prometaphase congression: Chromosome velocity as a function of position on the spindle Dwayne Wise OriginalPaper Pages: 231 - 241
Nucleosomal and supranucleosomal organization of transcriptionally inactive rDNA circles in Dytiscus oocytes Ulrich ScheerHanswalter Zentgraf OriginalPaper Pages: 243 - 254
Trisomic analysis of ribosomal RNA cistron multiplicity in barley (Hordeum vulgare L.) N. C. SubrahmanyamA. A. Azad OriginalPaper Pages: 255 - 264
Nucleoli and ribosomal RNA cistron numbers in Hordeum species and interspecific hybrids exhibiting suppression of secondary constriction N. C. SubrahmanyamA. A. Azad OriginalPaper Pages: 265 - 273
