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The Tay-Sachs disease is a rare disease that affects the central nervous system and is an inherited autosomal and recessive (most common in the descendants of Jews) and generally babies seem to have no symptoms, but over time these symptoms develop. It is a lysosomal storage disease which affected individuals, which are incapable of producing an enzyme lysosomal call hexosaminidasa-A involved in the degradation of gangliosides, a type of sphingolipids, which accumulate and degenerate to the central nervous system. It is a disease which is prevalent in individuals of Jewish descent. The disease is transmitted to be inherited by individual carriers (ie, people who have a normal gene, or that produces the enzyme, and one mutant gene that produces no), if two people carry the defective gene have children decide , the probabilities are as follows: 25% develop the disease, 25% of inheriting two healthy genes and not a carrier, and 50% of which is the bearer. Expectations The Tay... http://www.zadanews.com/2009/08/05/tay...