Question

Which of the following statements regarding gene therapy is/are correct?

• A. It is an application of biotechnology, in which a defective gene is manipulated by introduction of a normal, healthy and functional gene
• B. The genetic disorders that are being investigated for gene therapy, range from sickle-cell anaemia to severe combined immuno-deficiency $(SCID)$
• C. The first clinical gene therapy was given in $1990$ to a $4$-year old girl with adenosine deaminase $(ADA)$ deficiency
• D. All of these

Answer 1

Answer: (D)

Correct answer is (d) All of these