Unformatted text preview: One in 25 is a carrier; one in 2500 is affected. Tay Sachs A fatty substance builds up in the neurons (nerve cells) of people with Tay Sachs. This causes a gradual paralysis and loss of nervous function that leads to death by age 4 or 5. It is due to a single defective enzyme which normally digests the fatty material. Heterozygotes (Aa) are not affected and are resistant to tuberculosis. Prenatal diagnosis is available. It is a common genetic disease among the Jewish population in the US (central and eastern European descent). Up to 11% are carriers. It is also common in people of French-Canadian or Cajun descent....
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This note was uploaded on 12/15/2011 for the course BIO BSC1010 taught by Professor Gwenhauner during the Fall '10 term at Broward College.
- Fall '10