title: Action of 2',4'-dihydroxychalcone on grasshopper spermatocytic chromosomes.
mesh_terms: D000475:Alkenes / Q000494:pharmacology; D000818:Animals; D002875:Chromosomes / Q000187:drug effects* / Q000648:ultrastructure; D006110:Grasshoppers; D008297:Male; D010636:Phenols / Q000494:pharmacology; D010944:Plants; D011427:Propiophenones / Q000494:pharmacology*; D013094:Spermatozoa / Q000187:drug effects* / Q000648:ultrastructure
chemical_list: D000475:Alkenes; D010636:Phenols; D011427:Propiophenones