NEET Zoology Gene Therapy MCQ Question

Which of the following option is correct for given statement? (i) Correction of a genetic defect involves delivery of a normal gene into the individual or embryo. (ii) The first clinical gene therapy was given in 1990 to a⁴⁻year-old girl with adenosine deaminase (ADA) deficiency. (iii) Adenosine deaminase (ADA) enzyme is crucial for the immune system to function. (iv) Adenosine deaminase (ADA) deficiency disorder is caused due to the deletion of the gene for adenosine deaminase. (v) In some children ADA deficiency can be cured by bone marrow transplantation. (vi) In some children ADA deficiency treated by enzyme replacement therapy, in which functional ADA is given to the patient by injection.