Insertion of sequence including a frameshift mutation in exon 10A and replacement of exon 11 with 2A-lexA::p65 into the attP site within the TI{TI}Dscam2founder line. This creates an isoform reporter for exon 10B.
A reporter for Dscam2 exon 10B that is observed in R cell projections in the lamina plexus as well as in their cell bodies in the eye disc.