Answer: Gene therapy is done to correct genetic disorder
Gene therapy is a therapy that is given in order to treat a wide variety of disease such as hemophilia, cystic fibrosis, heart disease, cancer etc. It is a therapeutic delivery of nucleic acid into the patient as a drug to treat disease. It is done by inserting a new gene to replace a missing gene or non-functional gene, which can restore the function of the gene by encoding a functional protein.