A healthy woman gives birth to a baby with infantile Tay-Sachs disease She is surprised by this diagnosis because she does not remember meeting anyone in her family with this disease What is the m?

Tay-Sachs disease is a genetic disorder caused by a mutation in the HEXA gene, which is typically inherited in an autosomal recessive manner. This means that both parents must carry a copy of the mutated gene for their child to be affected. It is possible for a person to be a carrier of the gene mutation without showing any symptoms or having a family history of the disease, particularly in populations where Tay-Sachs is more prevalent, such as Ashkenazi Jews. Therefore, the woman may be a carrier without realizing it, leading to the unexpected diagnosis in her child.