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Tay-Sachs, Canavan, GM1 and Sandhoff diseases

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Both parents need to be carriers for a child to be affected with an autosomal recessive disease like Tay-Sachs. However, there is a 50% chance with each pregnancy that your child will be a carrier (like you) and a 50% chance that your child will inherit two normal copies of the Tay-Sachs gene.

For a graphic explanation, please visit the About Inheritance page.