Given below are two statements Statement-I: Adenosine deaminase is crucial for the immune system to function. Statement-II: Adenosine deaminase deficiency can be cured only by bone marrow transplantation. In the light of the above statements, choose the correct answer from the options given below.

Step-by-step solution

Adenosine deaminase (ADA) is an enzyme that is essential for the proper functioning of the immune system. Its deficiency causes Severe Combined Immunodeficiency (SCID). Thus, Statement-I is true. ADA deficiency can be treated by enzyme replacement therapy, bone marrow transplantation, and gene therapy. Bone marrow transplantation and enzyme replacement therapy are not completely curative. A permanent cure is possible if gene therapy is administered at early embryonic stages. Therefore, the claim that it can be cure