Ultrastructural analysis of Balbiani ring genes of Chironomus pallidivittatus in different states of Balbiani ring activity Hans-H. Trepte OriginalPaper Pages: 433 - 445
Cytological structure of the native polytene salivary gland nucleus of Drosophila melanogaster: a microsurgical analysis Ronald J. HillSusan Whytock OriginalPaper Pages: 446 - 456
Immunocytochemical localization of DNA in synaptonemal complexes of rat and mouse spermatocytes, and of chick oocytes Gerardo H. Vázquez NinErnestina FloresRicardo Benavente OriginalPaper Pages: 457 - 463
Spreading the synaptonemal complex of Neurospora crassa Benjamin C. Lu OriginalPaper Pages: 464 - 472
HeLa D98/AH-2 studied by chromosome painting and conventional cytogenetical techniques Doris RueßLi-Zhin YeCaspar Grond-Ginsbach OriginalPaper Pages: 473 - 477
Chromosome length and DNA loop size during early embryonic development of Xenopus laevis Gioacchino MicheliAnna Rosa Ciofi LuzzattoFranca Pelliccia OriginalPaper Pages: 478 - 483
Rapid, localized amplification of a unique satellite DNA family in the rodent Microtus chrotorrhinus William S. Modi OriginalPaper Pages: 484 - 490
Supernumerary heterochromatic segments associated with the nucleolar chromosomes of Pyrgomorpha conica (Orthoptera) contain methylated rDNA sequences José A. SujaCarmen AntonioJulio S. Rufas OriginalPaper Pages: 491 - 499
Large arrays of tandemly repeated DNA sequences in the green alga Chlamydomonas reinhardtii Trudy HailsMark JoblingAnil Day OriginalPaper Pages: 500 - 507