Eric and Janelle are carriers of the recessive allele causing Tay-Sachs disease, which is lethal in early childhood. If they have a healthy child, what is the probability that this healthy child would NOT be a carrier of Tay-Sachs disease?

75% probability that the child will not be a carrier.

Explanation: The Tay-Sachs disease is caused by mutation of the HEXA gene.

Tay–Sachs disease is an autosomal recessive genetic disorder, meaning that when both parents are carriers, there is a 25% risk of giving birth to an affected child with each pregnancy. A mutated copy of the gene is passed from each parent to the affected child. The causes are Genetic.

wellness is the state of being in good health, especially as an actively pursued goal.