[Effect of sex and age on the frequency of tumors arising in nonlineal mice under total gamma irradiation].

Single total 1 beta 7Cs irradiation of mice of colony SHK increases the incidence of tumors in female animals. Ovarian tumors would develop irrespective of the mice age to the moment of irradiation. The increased frequency of appearance of tumors of the mammary glands was noted in older female animals. Radiation enhances the development of tumors of the hematopoietic system in female animals and hepatic and pulmonary tumors in males. An average life survival is decreased in young females exposed to the irradiation.