I rediscovered this old article by Michael Pollan's blog thanks to my dad. I'm always surprised at how anti-GMO folks focus on the very precise, modern approaches to genetic engineering but comfortably ignore centuries of imprecise breeding, whether it's trees, crops, flowers or dogs. It mostly reveals an ignorance of Mendelian genetics, evolution, and especially molecular genetics. Pollan's article reminds us how modified (and similar) those good, old-fashioned Granny Smith, Fuji, Red Delicious or other apples on your counter really are.
At the end of the article there is contact information (outdated?) for growing or even tasting antique apples.