Answer:
A) To provide oxygen to the person's lungs.
Answer: 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.
