Published by:
CGP EDU Academic Team
Published on: August 21, 2026
Arrange the following steps used in gene therapy for treating a child with adenosine deaminase (ADA) deficiency:
A
Introduction of the functional ADA cDNA into lymphocytes using a retroviral vector
B
Periodic infusion of genetically engineered lymphocytes into the patient 
C
Culturing of lymphocytes outside the body
D
Extraction of lymphocytes from the patient's blood Choose the correct sequence of steps from the options given below:
Text Solution
Verified by ExpertsThe correct answer is:
C
The process of gene therapy begins with the extraction of lymphocytes from the patient's blood , followed by culturing these lymphocytes outside the body . Next, a functional ADA cDNA is introduced into these lymphocytes using a retroviral vector , and finally, these genetically engineered lymphocytes are periodically infused back into the patient .
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