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Fig. 2. The Con phenotype of Exp mutants. Nomarski images of the tail region of
wild-type and Exp mutant hermaphrodites (A-D) and their male counterparts
(E-H). Arrows indicate the width of the intestinal lumen. N2 hermaphrodites
and males are neither expulsion defective (Exp) nor Constipated (Con).
dsc-1(qm133) (B) exp-1(sa6) (C) and unc-25(e156)
(D) hermaphrodites are Exp and, as a result, exhibit the Con phenotype, as the
gut lumen fills with bacterial debris and becomes distended. Neither
dsc-1 (F) nor exp-1 (G) males are Con, indicating that they
are not expulsion defective. By contrast, unc-25(e156) males are Exp,
and as a result are severely Con (H). Scale bar: 10 µm.
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