[Cytochemical study of the elimination chromatin in silkworm meiosis]

The elimination chromatin separating from chromosomes during the first maturation division of female sex cells of lepidoptera insects was studied cytochemically on paraffin sections of eggs of Bombyx mori L. Ocytes at the metaphase-telophase stage of the first meiotic division were stained for RNA by metyl green-pyronin and gallocyanin with negative results. These data differ from earlier positive results for Solenobia triquetrella reported by Ris and Kleinfeld, 1952.