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Fig. 5. Neural tube morphogenesis is blocked at the neural keel stage in
N-cad mutants. (A-D) Dorsal view of embryos labeled by in
situ hybridization with a dlx3 riboprobe. Anterior is to the left;
developmental stages are indicated in the upper right corner. (A,B)
Representative embryos from a cross between two
N-cadp79emcf heterozygote parents. (C) Wild-type sibling;
(D) N-cadp79emcf mutant. Double arrowheads indicate the
width of the dorsal neural rod.