The radiogenotoxicological effect such as chromosome aberrations in germ cells and abnormalities in sperm induced by fission fragment
147
Pm in different periods after iv this radionuclide to mice was observed. Results indicated that chromosome aberrations of spermatogonium were induced by
147
Pm. The chromosome aberration rates and polyploid cells number were increased with the periods of contamination of
147
Pm. At the same time
147
Pm also induced chromosome fragments and translocations of primary spermatocyte. It was shown that polyvalent of primary spermatocyte appeared only after 10 days of