Tauopathies are a heterogeneous class of neurodegenerative diseases including Alzheimer’s disease (AD)1, chronic traumatic encephalopathy (CTE)2, progressive supranuclear palsy (PSP)3, corticobasal degeneration (CBD)4, and Pick’s disease (PiD)5, characterized by the formation of aggregated filaments of microtubule associated protein tau in the brain. This evidence concerns the gene MAPT and red-green color blindness.