10.5kb genomic fragment containing the sc gene.
Causes male lethality by activating Sxl in haplo-X flies.
Suppresses the sisA1 female-specific lethality phenotype. Two copies of P{B5.T4+,w+} are more effective at the suppression than one.
Complements the female-specific lethality of scsisB-1, but not the bristle phenotype.