If by “a lot” you mean “nearly all commonly grown crops in the last 200 years or more”, then yes. There are very few crops we haven’t altered in our quest to feed more people with less work, and even things such as heirloom produce are just varieties that breed true (and may have been around longer than the other varieties).
I have some concerns about GMOs, mostly because we aren’t very good at it yet. When we start producing things with the behavior of cucumbers producing cucurbitacin (not a desirable trait, but highly targeted), or if we’re adding benign genes that make something produce beta carotene, I’m all for it.
If by “a lot” you mean “nearly all commonly grown crops in the last 200 years or more”, then yes. There are very few crops we haven’t altered in our quest to feed more people with less work, and even things such as heirloom produce are just varieties that breed true (and may have been around longer than the other varieties).
I have some concerns about GMOs, mostly because we aren’t very good at it yet. When we start producing things with the behavior of cucumbers producing cucurbitacin (not a desirable trait, but highly targeted), or if we’re adding benign genes that make something produce beta carotene, I’m all for it.
I wasn’t sure how many crops are actually bred in a significant way, and I didn’t feel like researching so I just wrote “a lot”.