one parent is heterozygous dominant in earlobe
x_linked_dominant_inheritance is not inheritance. earlobe is not external_anatomical_part. earlobe is lobe. earlobe is not body_part. left_earlobe is earlobe. earlobe is body_part. left_earlobe is not earlobe. earldom is domain. x_linked_dominant_inheritance is inheritance. earlobe is external_anatomical_part.