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.
The frequency of insertions at repair junctions during alternative end-joining after Scer\SCEI-induced double-strand breaks is significantly decreased relative to wild-type in mus308unspecified mutants.
The spontaneous recessive lethal frequency is lower than for wild-type, but the recessive lethal frequency induced by ethyl nitrosourea is significantly higher than for wild-type in a mus308unspecified background. In these conditions, the frequencies of GC->AT, AT->GC and GC->TA changes are increased, and AT->CG changes are decreased.