Complex sentence: It was also observed that sterility could be inherited-as the fecundity of F1 females was still markedly reduced, and there was a high female pupal mortality rate that increased with doses of irradiation treatment.
Split into simpler sentences: It was also observed that sterility could be inherited. As the fecundity of F1 females was still markedly reduced, and there was a high female pupal mortality rate that increased with doses of irradiation treatment.