The premature loss of mushroom body neuroblasts observed in the brain of Mcm3smu mutant pupae is not suppressed by combination with single copy of Df(3L)H99 (and thus removing one copy of several pro-apoptotic factors).
The adult brain mushroom body structural defects characteristic for Mcm3smu mutants as well as the increased average size of the larval brain neuroblasts are rescued by combination with a single copy of Mcm3+tBa.