The Df(3L)XS705 chromosome does not act as a dominant suppressor of telomeric silencing (assayed using the effect of the chromosome on the eye colour phenotype of flies carrying "P{w^var}KR3-2", a stable "brown-red" variant of the P{3'WP-2,w^var}2Lt insertion).

Suppresses the rough eye phenotype of Ras85D^V12.sev. Has little or no effect on the phenotype of Ras85D^N17.sev. Has little or no effect on the phenotype of phl::tor^13D.hs.sev. Suppresses the phenotype of Ras85D::Src64B^{V12.ΔCAAX.sev}. Has little or no effect on the lethality of Raf¹². Has little or no effect on the Raf¹² eye phenotype. Has little or no effect on the Dsor1^XS520 eye phenotype. Enhances the aop^S2382 eye phenotype.