I remember, as a kid, reading a book about a group of kids, who were cloned from tissue samples taken from violent criminals. I am pretty sure that all of the adults are in on it, if not most. It was on an experiment to see if violence was genetic, or not.
The kids were raised in a dystopian, knowledge-restricted town. I remember that if the clones went beyond the border, they would get violently sick. I also remember that, in the town, not all of the kids are clones, just a few.
I am pretty sure that the narration switches between several of the main characters. I also think that one of the kid's "dad" is one of the scientists.