In May, I made a split with several frames of brood and a purchased queen. While there is fresh brood and larvae in the hive, I'm wondering if some of the other darker frames contain dead brood, since the frames have looked the same for several weeks-although I see no other signs of disease. Will bees uncap and clean the dead cells? (I don't want to kill any larvae unecessarily if they're stilll viable.) Also, the cappings on the newest brood are a very light yellow, a real contrast to the dark brown of the older cappings.