a homozygous dominant hill contains only dominant mussel
hydrocharis_morsus_ranae is plant. dwarf_wedge_mussel is mussel. swan_mussel is mussel. juniperus_coahuilensis is juniper. zebra_mussel is mollusca. mutton is adult_sheep. winged_mapleleaf_mussel is mussel. appalachian_monkeyface_pearly_mussel is pearly_mussel. peppin_merino_sheep is sheep. mussel is clam.