Complex: Deletion in proximal direction from original P{}17C2-3 insertion, leaving insertion, possibly in reverse orientation (i.e. being transcribed proximally) and with a second (transcribed proximally) 7kb insertion into exon V of Bx. The 7kb insertion consists of a P{} element with 1.7kb of flanking genomic DNA at its 5' end and 2.5kb of flanking genomic DNA at its 3' end.
Rank of homozygous phenotype: 3-4. Rank of heterozygous phenotype: 1-2. (Rank 1 is wild type. Rank 8 is nearly strap like wings.)