title: The chromosomal nature of lesions responsible for lethal sectoring in yeast.
mesh_terms: D000483:Alleles; D002875:Chromosomes; D005804:Genes, Lethal; D005808:Genes, Recessive; D009154:Mutation; D011831:Radiation Genetics; D012441:Saccharomyces cerevisiae / Q000528:radiation effects*