Contains an insertion approximately 400 bp upstream of the longest ap transcribed region.
Both the loxP and FRT cassettes have been excised from the P{(loxP.MCP-PRE)(FRT.bxd-PRE)Flipper2} element in the P{(loxP.MCP-PRE)(FRT.bxd-PRE)Flipper2}apMM-Mcp-bxd insertion.
The wings of apMM mutant flies are completely normal.