Dynamic light scattering experiments using circularly polarized light in the back-scattering configuration were used to study the effect of polymer stabilization on the amplitude of fluctuations in two of the five structural modes present in the isotropic phase of the chiral nematic liquid crystal (S)-(+)-4-(2-methyl-butyl) phenyl 4-decyloxybenzoate (CE6). From these data, the second-order transition temperatures of these modes, which grow further apart if chirality increase were determined. When the chiral liquid crystalline polymer was added, the fluctuations of the modes deviated from the normal temperature dependence and the separation of the second-order transition temperatures increased.