Epistasis is where one gene hides the effects of another gene. In labrador dogs, the dominant allele (E) determines whether the skin will have pigment. The dominant allele (B) determines how dark it is (color). Match the color dog with the correct genotype. Black lab Chocolate (brown) lab Yellow lab

Adaptive radiations can be a direct consequence of four of the following five factors. selectthe exception. a) vacant ecological niches b) genetic drift c) colonization of an isolated region that contains suitable habitat and few competitor species d) evolutionary innovation e) an adaptive radiation in a group of organisms (such as plants) that another group uses as food