Huntington's disease causes a slow degeneration of the nervous system, beginning at about age fifty. patients with huntington's disease lose control of their limbs and become forgetful. as the disease grows more severe, it paralyzes and kills them. the disorder is dominant. suppose that bill's genotype is (hh) and his wife sharon is (hh). what are the chances that his daughter, grace, will also have huntington's? a) 0% b) 25% c) 50% d) 100%