FlyBase curator comment: this entry is used to capture phenotypic information when the particular allele (or allele combination) used by the author could not be determined but the context of the experiment suggests that the phenotype being described is some kind of loss of function.
Mutant larval brain neuroblasts show an increase in chromosome breakage which is reduced by feeding with 0.1M citrate.
seaunspecified mei-4129D double mutants show a 2.5 fold increase in the mitotic index of larval brain neuroblasts compared to seaunspecified single mutants.