title: Inheritable precocious opening of the vagina in laboratory rats exposed to 300 R and 200 R of X-rays on day 6 of their intrauterine life.
abstract: A highly significant inheritable advancement in opening of the vagina in laboratory rats has been induced by the X-ray application to pregnant females of different filial generations origination from the X-irradiated FO embryos. The reaction to X-rays has so far been followed through 9 filial generations.
mesh_terms: D000375:Aging; D000818:Animals; D004622:Embryo, Mammalian / Q000528:radiation effects; D005260:Female; D005865:Gestational Age; D011247:Pregnancy; D011831:Radiation Genetics; D051381:Rats; D014621:Vagina / Q000528:radiation effects*