[Search for translocation heterozygous female mice among the progeny from males subjected to chemical mutagen (thioTHEPA) exposure].

C57Bl/6Y male mice were intraperitoneally injected with thioTEPA at a dose of 1.25 mg/kg. The male mice were crossed with F1CD hybrid females during the second week after the treatment. 122 females F1 obtained from this cross were examined. The embryonic lethality was studied and preparations of meiotic metaphases I in oocytes were found among the progeny F1. Among F1 females 41 (33.6%) "semisterile" and sterile ones were found. Translocations were cytogenetically confirmed only in 8 females out of 38 investigated.