Lethality occurs during pupal or adult stages. Homozygous germline clones display no maternal effect. Embryos derived from heterozygous mothers do not exhibit CNS or PNS defects and adults are unable to walk due to lack of coordination.
uncl5 sol1 double heterozygotes have a normal optomotor response and normal viability.
Most mutant flies die just before eclosion. Those that survive have uncoordinated leg movements and die soon afterward. Hemizygous females have the same phenotype as hemizygous males and homozygous females.