Well some fries have colored up. Results are not so spectacular as I assumed when starting this project. In fact crossing singas (which is Y-linked and coloring up forebody) with another gene that can possibly color up forebody was not the best idea to verify X linking of Sc gene. Below are results. And now I am not sure if females do carry Sc, or maybe japan blue or maybe nothing and I just have strangly colored singas? Who knows.
Notice this yellow/gold spots on forebody and peduncle. Strange looking.