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MediumZoologyGene therapy (ADA)
+4 / -1
Patient has a defective ADA gene. Which of the following is a permanent cure for this condition?
A
Periodic infusion of genetically engineered lymphocytes.
B
Enzyme replacement therapy.
C
Bone marrow transplantation at adult stage.
D
Introduction of the ADA gene into cells at early embryonic stages.

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