Critical electrolyte concentration of chromatin in polytene chromosomes of Trichosia pubescens (Diptera, Sciaridae)

The binding of toluidine blue molecules to nucleic acid phosphates under conditions of competition with Mg2+ ions was studied in Trichosia pubescens polytene chromosome regions differing in composition and organization (RNA-rich areas and puffs, DNA puffs, heterochromatin). The aim was to find varia...

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Bibliographic Details
Main Authors: Ana Lúcia P. Monteiro, Maria Luiza S. Mello
Format: Article
Language:English
Published: Sociedade Brasileira de Genética 1998-06-01
Series:Genetics and Molecular Biology
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47571998000200003