[Cytogenetic activity of the pesticide, Valexon, and its effect on the mutability of mouse bone marrow cells].

Cytogenetic activity of organo-phosphorous insecticide, Valexon, and its influence on the mutability of mice bone marrow cells were studied. Mice repeatedly treated with low doses of Valexon are determined to possess a higher bone marrow cytogenetic sensitivity to the action of the known mutagen rubomycin (daunomycin).