What is the stated purpose of gene targeting as described in the Evans study?

• A. To map diseases
• B. To develop treatments
• C. To map genomes
• D. To increase crop yields

Answer: (B)

Gene targeting is about changing a specific gene to influence how it works, with the aim of treating disease. In the Evans study, this approach is described as a way to develop treatments for genetic disorders by correcting or compensating for faulty genes. The focus is on therapeutic intervention at the genetic level, not merely locating where diseases occur or cataloguing all genes, and certainly not on agricultural goals. So the stated purpose is to create new treatments by directly targeting and modifying genes.