Which of the following is the main difference between in vivo and ex vivo gene therapy?
A. Ex vivo gene therapy uses an individual's own cells, where in vivo gene therapy uses donor cells from other healthy individuals.
B. Ex vivo gene therapy occurs inside the body and in vivo gene therapy occurs outside the body.
C. Ex vivo gene therapy occurs outside the body and in vivo gene therapy occurs inside the body.
D. Ex vivo gene therapy uses donor cells from other healthy individuals, where in vivo gene therapy uses an individual's own cells.
Answer: C
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