User blog comment:ZXSpidermanXZ/GMOs/@comment-4631986-20130202175250/@comment-4052371-20130204202104

Marro : Both methods work by modifying the genes of the plant over a certain period of time to give them more desirable traits. The newer methods just use a more direct approach.

Also, I have no idea where you get this idea that selectively planting crops is not genetically modifying. Let me explain it to you very simply : the whole point of it is to modify the genes of the plants over time. Therefore, it is a form of genetic modification. I don't see what's so complicated about that...