Which genetic disease is caused by a recessive gene that fails to make an essential lipid-processing enzyme?

Question

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Tay-Sachs disease is caused by a recessive gene that results in the absence of an enzyme called hexosaminidase A, which is essential in breaking down a fatty substance called ganglioside GM2. Without this enzyme, ganglioside GM2 builds up in the brain and nerve cells, causing damage and eventually leading to death.

Which Genetic Disease Is Caused by a Recessive Gene That