title: X-ray induction of chromosome and chromatid aberrations in the same cells after treatment with hydroxyurea.
abstract: Vicia faba root meristem cells treated for 24 h with 1.25 mM hydroxyurea and then X-irradiated contained a large number of cells with both chromosome and chromatid aberrations. X-irradiation 4 h after release from the hydroxyurea block yielded cells with almost exclusively chromatid aberrations.
mesh_terms: D002842:Chromatids / Q000187:drug effects / Q000528:radiation effects*; D002869:Chromosome Aberrations / Q000187:drug effects / Q000528:radiation effects*; D004261:DNA Replication / Q000187:drug effects / Q000528:radiation effects; D006918:Hydroxyurea / Q000494:pharmacology*; D018521:Plant Physiological Phenomena; D010944:Plants / Q000187:drug effects / Q000528:radiation effects*; D014965:X-Rays
chemical_list: D006918:Hydroxyurea