<s>[INST] Fruit fly (_Drosophila melanogaster_) is a suitable model organism for studying the molecular and genetic basis of various diseases. Though this species has some unique features such as low cost, easy handling, high reproductive rate and shorter life cycle compared to other model organisms. Reciprocal hemizygosity experiment has shown that _simple_ allele of _ow_ (_ordinary wing_) gene is difficulty to characterize because of its dominant nature. What can you infer from this statement regarding future experiments?[/INST]