In studies on 120 mature males of Wistar rats and 252 female rats of the same line, 20-day-old fetuses and 974 young rats of the first generation, anomalies of antenatal and postnatal development were found after exposure of spermatids and spermatozoa to gamma-radiation in doses 0.25-1.0 Gy. After exposure of male rats to radiation in dose 0.25 Gy, reliable delay of pelvic bone ossification was observed as compared to the control.
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