Which kind of therapy was given in 1990 to a four-year-old girl with Adenosine Deaminase (ADA) deficiency?

(1) Gene therapy 

(2) Chemotherapy

(3) Immunotherapy

(4) Radiation therapy

The ADA deficiency is because of

A permanent cure for ADA deficiency could be:

Find the incorrect statement.
1. Gene therapy is a genetic engineering technique
used to treat disease at molecular level by
replacing defective genes with normal genes
2. Calcitonin is a medically useful recombinant
product in the treatment of infertility
3. Bt toxin is biodegradable insecticide obtained
from Bacillus thuringiensis
4. Trichoderma sp. is a biocontrol agent for fungal
diseases of plants

The first step of gene therapy would be

Gene therapy is not

The last step of gene therapy would be

Which of the following therapies for ADA deficiency are not completely curative?

The permanent cure of gene therapy can be

All of the following statements are correct in respect of gene therapy, except

1. It allows correction of genetic defect in embryonic stage only 

2. The gene is inserted into cells and tissues to treat a disease

3. Delivery of a normal gene into cell takes over the function of and compensate for the non-functional gene 

4. As a step towards gene therapy to treat ADA deficiency, ADAcDNA is introduced into cultured lymphocytes of the patient and subsequently returned to him/her.