Question

24. SC.912.L.16.2Mr. and Mrs. Howard are deciding whether to have children. A physician advises them both to tested forthe allele that causes Tay-Sachs Disease, which is a fatal genetic disorder. The couple asks the followingquestion to the physician:"Neither of us have Tay-Sachs Disease, so how could our children inherit it?"a.Which is the most accurate and useful response to the Howards' question?Tay-Sachs is caused by a recessive allele, so you both could be carriers.ab. Tay-Sachs is caused by a dominant allele, so either of you could be a carrier.Tay-Sachs is caused by an X-linked allele, so you both could be carriers.d. Tay-Sachs is caused by a Y-linked allele, so you both could be carriers.c.

Answer 1

The most accurate and useful response to the Howards' question is:

a. Tay-Sachs is caused by a recessive allele, so you both could be carriers.