decrease in concentration and mobility of the 4.8 kb RNA
ninaC2 larvae reduce their path lengths and show increased head swinging when exposed to light. This response is indistinguishable from wild-type larvae. Wild-type larvae show a greater change in direction when lights are turned on or off (light (L) to dark (D), or D to L transition) than in the absence of a light transition (D to D). The amplitude of change of direction is greater for the D to L than for the L to D transition. The only significant difference in ninaC2 larvae is that the change of direction at D to L is greater than for the L to D transition.
The axial cytoskeleton of the rhabdomeral microvilli is not detectable in newly eclosed ninaC2 flies. The number of multivesicular bodies in the photoreceptor cell cytoplasm is similar to wild-type.