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If have the Tay-Sachs gene, why don I have the disease?

April 26, 2017disease gene tay-sachs

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If have the Tay-Sachs gene, why don I have the disease?

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You can be a carrier of Tay-Sachs disease, with a recessive gene. If you have a baby with a non-carrier, then your baby may become a carrier of Tay-Sachs, but it cannot get the disease. If your partner is another carrier of Tay-Sachs disease, then each baby you give birth to has a 25% (1 in 4) chance of getting the disease.