Genetic disease: Tay-sachs is a horrible but rare genetic disease caused by an autosomal recessive mutation (abnormal gene) -- this means that both parents have to be carriers of the gene for a baby to inherit the disease. The tay-sachs gene is famous for being found in ashkenazic jews, but is also more common among french canadians and cajuns. Altho rare, anyone can carry the gene (approx 1/300 in north america).
Answered 10/26/2015
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