In the filamentous fungus Neurospora crassa, a mutant strain called stopper (stp) arose spontaneously. Stopper showed erratic “stop and start” growth, compared with the uninterrupted growth of wild-type strains. In crosses, the following results were found: Female stopper x male stopper → progeny all stopper Female wild type x male stopper → progeny all wild type Female stopper x male wild type → progeny all stopper Female wild type x male wild type → progeny all wild type What do these results suggest regarding the location of the stopper mutation in the genome? The progeny results indicate sex linkage on the Y chromosome because the results of the cross are sex-specific. The results of the cross indicate autosomal inheritance because the phenotype is not confined to any particular sex. The progeny results indicate sex linkage on the X chromosome because the results of the cross are sex-specific. The progeny results indicate cytoplasmic chloroplast inheritance since all the progeny show only the female parent phenotype and the cytoplasm of the zygote originates only from the female germ cell. The progeny results indicate cytoplasmic mitochondrial inheritance since all the progeny show only the female parent genotype.