When editing DNA, how does an organism know to replicate the edited DNA vs. the non-edited DNA?

Question

When editing DNA, how does an organism know to replicate the edited DNA vs. the non-edited DNA?

In: Biology

Answer 1

It really doesn’t – that’s why all the talk is about genetically modifiying embryos and not fully grown people – there’s just too many non-modifed cells for the new ones to become a majority over time.