title: Appearance of potential changes in the chromosomes of Drosophila spermatogonia under the influence of N-nitrosomethylurea.
mesh_terms: D000818:Animals; D002875:Chromosomes / Q000187:drug effects*; D004330:Drosophila / Q000187:drug effects*; D005260:Female; D005804:Genes, Lethal; D008297:Male; D008782:Methylurea Compounds / Q000494:pharmacology; D009030:Mosaicism; D009153:Mutagens / Q000494:pharmacology*; D009154:Mutation; D009607:Nitrosourea Compounds / Q000494:pharmacology*; D013094:Spermatozoa / Q000187:drug effects* / Q000648:ultrastructure
chemical_list: D008782:Methylurea Compounds; D009153:Mutagens; D009607:Nitrosourea Compounds