Among children with parents who are both carriers of a Tay-Sachs, an autosomal recessive disorder, chances are that

Question

Quizplus · Accepted Answer

When both parents are carriers of Tay-Sachs, each child has a 25% chance of inheriting two copies of the mutant gene and developing the disease, a 50% chance of inheriting one copy of the mutant gene and being a carrier like their parents, and a 25% chance of inheriting neither copy of the mutant gene and not being a carrier. Therefore, the answer is option D, 50% will be carriers.

Among Children with Parents Who Are Both Carriers of a Tay-Sachs