Tay-Sachs Disease Causes
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Causes of Tay-Sachs Disease
TSD is caused by the absence of an enzyme. This enzyme is needed to break down a fatty substance called GM2. As a result, GM2 builds up. The build up in the brain causes damage.
TSD occurs when both parent pass on the faulty genes. A person can have just one copy of the faulty gene. In this case, there are no symptoms. The person is called a carrier.

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