How could gene therapy be used to treat diseases caused by mutated genes?

A.
It could infect a person with a virus that is more harmful than the mutation.
B.
It could change a few bases in a piece of mutated DNA in only one cell.
C.
It could change genes in an individual so that offspring cannot get the disease.
D.
It could deliver a corrected version of a gene to a person's cells.

1 answer

D. It could deliver a corrected version of a gene to a person's cells.

Gene therapy aims to treat or prevent diseases caused by mutated genes by introducing, removing, or altering genetic material within a person's cells. One common approach is delivering a corrected version of a gene to compensate for or fix the faulty version that causes the disease.