The homozygous lethality of Df(3R)P10 is not rescued by one or two copies of Dp(3;3)sbd104. Lethal in combination with Df(3R)Ubx109 Df(3R)P10. Lethal in heterozygous combination with Tp(3;3)bxd100 Df(3R)P10. Lethal in heterozygous combination with Df(3R)bxd100 Df(3R)P10. Lethal in heterozygous combination with Df(3R)P115 Df(3R)P10. Lethal in heterozygous combination with Tp(3;2)iab2P10 Df(3R)P10. Viable in heterozygous combination with In(3LR)P88 Df(3R)P10. Viable in heterozygous combination with Tp(3;3)sbd104 Df(3R)P10. Viable in heterozygous combination with Df(3R)sbd104 Df(3R)P10. Viable in heterozygous combination with Tp(3;1)P115 Df(3R)P10. Df(3R)P10 Dp(3;3)sbd104 Df(3R)P115 Dp(3;3)S462 flies are viable.