🔬 Biology · Biotechnology and its Applications · NEET

Gene therapy was first used in 1990 to treat a girl suffering from ___ deficiency:

Correct answer: A. ADA

Explanation: The first gene therapy treated a girl with adenosine deaminase (ADA) deficiency.

Concept context

GM crops, transgenic animals, gene therapy, molecular diagnostics, and bioethics. Frequent 2–3 mark questions in NEET.