FIGURE 5.

porin homozygous mutants exhibit abnormal ERGs. A, stereotypical “wild type” ERG are depicted. On-transient (ON), off-transient (OFF), and maintained potentials (MP) evidenced during light pulse are indicated. B, representative ERGs for wild type (yw), homozygous mutant (porin^Rev8), and rescue homozygous mutant (porin^Rev8; Tub-GAL4>UAS_porin) are shown to the right. C, bar graph depicts mean potentials (+S.E.) for each genotype. Statistical significance was evaluated by the Student's t test with Welch correction. Sample size for each genotype: yw (n = 3); porin^Rev8 homozygotes (n = 5); and rescued porin^Rev8 homozygotes (n = 3).