title: Induced intragenic recombination in yeast can occur during the G1 mitotic phase.
abstract: The conditional cell division cycle yeast mutants cdc have been used to demonstrate that intragenic recombination induced by ultraviolet or gamma rays occurs in diploids arrested in G1, a short time after irradiation and before the initiation of the S phase. This implies that pairing of homologous chromosomes does not require duplicated chromatids.
mesh_terms: D002453:Cell Cycle; D004261:DNA Replication; D005720:Gamma Rays; D008938:Mitosis; D009154:Mutation; D011995:Recombination, Genetic / Q000528:radiation effects; D012441:Saccharomyces cerevisiae / Q000235:genetics*; D014466:Ultraviolet Rays