title: Differential maleic hydrazide (MH) sensitivity shown by the spermatocyte chromosomes in five species of grasshoppers.
mesh_terms: D002869:Chromosome Aberrations; D002875:Chromosomes / Q000187:drug effects*; D006110:Grasshoppers / Q000187:drug effects*; D006801:Humans; D008297:Male; D011724:Pyridazines / Q000494:pharmacology*; D013094:Spermatozoa / Q000187:drug effects*
chemical_list: D011724:Pyridazines