Fig. 3. Morphological data for morpholino injection and RNA rescue. Embryos were injected with morpholinos alone or with RNA, as indicated, and otic vesicles were examined in individual embryos. Severity of otic defect was scored by counting the number of otoliths visible in each otic vesicle: 0:0, no otoliths detectable in either otic vesicle of embryo; 0:1, one otolith detectable in one otic vesicle, etc.