Etude des mécanismes de réparation rapide des lésions chromosomiques induites par des doses fractionnées de rayons γ au cours de la spermatogenèse chez la souris

In the present experiments, male mice ae irradiated with 60 Co γ-rays, and clastogenic effects induced during spermatogenesis were obserrved. The rate of observed lesions decreased when the two half-doses were separated by time intervals between 4 and 10 min. This decrease proves the occurrence of fast rejoining processes in chromosomes at meiosis probably related with DNA repair processes