Figure 11 of Kagemann, Mol Vis 2008; 14:2157-2170.

Figure 11. Visualization of mutations associated with nok m520 gene mutation. Side by side comparison of 72 hours post fertilization embryo eye (A) and heart (B) structures, with nok m520 mutant embryo genotypes on the left, and embryos of the same age without the nok m520 gene mutation. Contrast was enhanced in the retina and heart.