tay-sachs disease, 3d

alpha autosomal background betahexosaminidase brain chemical congenital deficiency demyelination diagram disease disorder dna enzyme ganglioside gangliosidosis gene genetic gm2 hexa hexosaminidase human illustration infancy infant inherited lipid lysosomal lysosome medical metabolic molecular molecule mutation neurology neuron ocular ophthalmology pathology polypeptide rare recessive science sphingolipidosis storage structure taysachs tsd