53. Which of the following statements about inherited disorders is FALSE?
(A) Cystic fibrosis, a recessive disease, is caused by the defect of Cl-transporter.
(B) Tay-Sachs disease, a dominate disease, is caused by the defect in mitochondria.
(C) Phenylketonuria, a recessive disease, is caused by inability to metabolized phenylalanine.
(D) Huntingon’s disease, a dominate disease, is a neuron degenerative disease.
(E) Sickle-cell disease caused by T to A substitution results in defect of hemoglobin.