Imagine you're counseling a couple who have undergone carrier screening for Tay-Sachs disease. The man is a carrier, and the woman does not carry the Tay-Sachs allele. How should you advise them?

Check the explanation

Explanation:

Tay-Sachs disease is a disorder in genetic trait that results in the damage of nerve cells in the spinal cord and the brain. The most regular type, identified as an infantile Tay-Sachs disease, becomes noticeable around 3 to 6 months of age with the baby losing the capability to sit, turn over, or crawl.

Since one of the couple in question is a carrier and not both, then they should be informed that if they have a child, the child will not have Tay-Sachs disease but will have a 50% chance of being a carrier of the Tay-Sachs allele.