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. 2000 Nov 15;14(22):2839–2854. doi: 10.1101/gad.840500

Figure 8.

Figure 8

Absence of the dorsal cochlear nucleus (DCN) and eighth nerve in the null. (a,b) Ventral view of whole-mount β-gal stained heterozygous (a) and null (b) brains at 6 wk of age. Note that n.VIII (see bracket in a, arrowhead in b) and the small bump representing the whole population of the DCN are missing in the null (* in a,b; scale bar = 200 μm). This loss is confirmed by cresyl violet–stained horizontal sections (DCN in c,d) and H&E stained cross sections (8n in e, f; scale bar = 200 μm). VCP, ventral cochlear nucleus, posterior; vg: vestibular ganglion; 8vn, vestibular nerve root; sp5, spinal tract of Vth cranial nerve; Tn, nucleus of sp5; cb, cerebellum; cp, choroid plexus.