Gene Therapy for Leber's Congenital Amaurosis II Consists of

Gene therapy for Leber's congenital amaurosis II consists of

A) replacing an enzyme that restores the function of T and B cells.
B) injecting wild type alleles of the RPE64 gene into affected cells of the retina.
C) injecting wild type alleles of the dystrophin gene into affected muscle cells.
D) inhaling viruses that have been modified to carry the wild type CFTR gene.
E) injecting the gene encoding ornithine transcarbamylase into a vein in the liver.