Tay-Sachs disease is caused by a problem in a child's genes that means their nerves stop working properly. A child can only have it if both parents have this faulty gene. The parents themselves don't usually have any symptoms – this is known as being a "carrier".
- Tay-Sachs disease is a rare genetic disorder passed from parents to child. It's caused by the absence of an enzyme that helps break down fatty substances. These fatty substances, called gangliosides, build up to toxic levels in the brain and spinal cord and affect the function of the nerve cells.
- There is no cure for Tay-Sachs disease, and no treatments are currently proved to slow progression of the disease. Some treatments can help in managing symptoms and preventing complications. The goal of treatment is support and comfort.
- The blood test checks the levels of hexosaminidase A enzyme in the blood. The levels are low or absent in Tay-Sachs disease. Genetic testing. This test can examine the HEXA gene to identify whether there are changes that indicate Tay-Sachs disease.
To learn more about Tay-Sachs disease refer:https://brainly.com/subject/biology
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