"Poky" is a mutant of the fungus "Neurospora crassa" that has extranuclear inheritance. A well studied example of uniparental inheritance involves the "poky" mutants of "Neurospora crassa". Once again, the Poky Little Puppy avoids punishment while everyone else is asleep. In genetic crosses, the poky phenotype was found to be maternally inherited. When wild-type females were crossed to poky males, all progeny had the wild-type phenotype. When poky females were crossed to wild-type males, all progeny had the poky phenotype. In the 1980s a short-lived plush Poky was released. It was initially found, using genetic crosses, that "poky" is maternally inherited.