The FRT cassette in the 5' untranslated region has been excised.
female fertile
c(2)Mcsm1-3.Tag:MYC rescues c(2)MEP2115
The elevated X chromosome non-disjunction that is seen during meiosis in c(2)MEP2115 females is rescued by c(2)Mcsm1-3.T:Hsap\MYC.