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Rescue of medium dumpy phenotype of a dpy-18 strain by coinjection of a wild-type copy of phy-1 and the selectable marker dpy-7–GFP. (A) Rescued progeny (arrow) and nonrescued progeny of a dpy-18 strain (e364) viewed by Nomarski optics. (B) Corresponding fluorescence in the rescued dpy-18 strain (e364) (arrow) viewed under a UV filter. Adult stages are depicted.
