The $2$ basic types of gene therapy are$\_$in vivo$\_$ and $\_$ex vivo $\_$ Match the term to the type.

could be considered less risky since the specific, affected cells are taken out of the body and transfected with virus. Once the new DNA introduced by the virus enters the cell's genome, the cells can be put back in the body.

$$ a virus is introduced into the body and the virus could infect any cell. Viral DNA could be introduced into cells that you do not want infected and systemic problems $($e$.$g$,$ with the immune system$)$ are more likely to result.

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