Answer:
The correct answer would be C) The introduction of a new gene that can bind with the abnormal gene to inhibit its action.
Gene therapy refers to the introduction of a gene in cells of a patient in order to treat a disease.
Gene therapy mainly considers two approaches: it either replace the defective gene or disrupts the defective gene.
The introduction of a gene to inhibit the abnormal gene comes under the disruptive approach of gene therapy.
It is also called gene knockdown in which expression of an abnormal gene is prevented with the help of RNA interference.
The new gene will form anti-sense RNA which will bind to the mRNA of the defective gene and thus prevent the translation.
