Which one of the following vectors is used to replace the defective gene in gene therapy?
(a) Adenovirus (b) Cosmid (c) Ri plasmid (d) Ti plasmid
Answer (a) : Gene therapy is a corrective therapy that is given to patients of diseases caused by some gene defects. Here, genes are inserted into a person’s cells and tissues to treat disease by replacing the defective gene. The normal gene delivered into the individual or embryo takes over the function of and compensate for the normal gene. Viral vectors like adenovirus are generally used to deliver the normal gene.
