"lacZ::
fem-3(+) remained repressed in these other mutant backgrounds. Thus, 0% (
gld-1), 0% (
fog-1), 5% (
glp-4), 0% (
tra-2) and 0% (
unc-17) of mutants carrying lacZ::
fem-3(+) expressed a high level of B-gal in >20 intestinal nuclei when placed in the mutant background indicated in parentheses."