many drosophila geneticists use a unique convention for naming genes. a wild type fruit fly typically has a black and tan-striped body, however, some fruit flies are observed with a yellow body. a mutation in which of the following genes is likely responsible for this mutant phenotype? stripe yellow dark body black why is this method of naming genes problematic? there is no way to name genes that do not code for proteins. mutating the same gene in another organism may not result in the same phenotype. mutating a particular gene may not always produce the same phenotype in the fly. genes are typically named according to the wild type phenotype they produce.