The limiting diffusion of special diploid model can be defined as a discrete generator for the rescaled Markov chain. Choi([2]) defined the operator of projection $S_t$ on limiting diffusion and new measure $dQ=S_tdP$. and showed the martingale property on this operator and measure. Let $P_{ ho}$ be the unique solution of the martingale problem for $mathcal{L}_0$ starting at ${ ho}$ and ${pi}_1,{pi}_2,{cdots},{pi}_n$ the projection of $E^n$ on $x_1,x_2,{cdots},x_n$. In this note we define $$dQ_{ ho}=S_tdP_{ ho}$$ and show that $Q_{ ho}$ solves the martingale problem for $mathcal{L}_{pi}$ starting at ${ ho}$.