ari-1⁵⁷⁷⁷ repressively leads to a decrease in the frequency of spontaneous miniature events in the larval neuromuscular junction.

Adult male survivors are seen at a low frequency (less than 10%). New or aberrant versions of normal axonal bundles are found in the brain and thoracic ganglia of gynandromorphs. Occasionally a major bundle is missing, such as the descending path that carries one of the two cervical giant fibers. All abnormal bundles consist of coherent groups of axons that project along unusual paths rather than disorganised or aborted individual axons. The negative sustained component of the electroretinogram of mutant escapers is reduced to 1/3 of controls. The amplitude of the on and off transients is reduced by approximately 60%. Females carrying homozygous germline clones can produce offspring, indicating that the ari-1⁵⁷⁷⁷ mutation does not prevent oogenesis.