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Figure 8


Fig. 8. Defects in excretory cell processes in dgn-1 mutants. (A) H-shaped excretory cell of a wild-type animal. (B) Homozygous cg121 null mutants frequently have short (arrow) or missing (arrowhead) excretory cell arms. (C) Null mutants also show arm duplications (arrowheads) but at a lower frequency (ra/la, right/left anterior; lp, left posterior arms). (D) Percentage of wild type, cg121 homozygotes or cg121/+ heterozygotes with the indicated defect in at least one excretory cell arm. Multiple defects can be present in a single animal, so values do not add to 100%.