Most likely the roots will be easy to identify as a cultivated transplant. In this situation the roots will generally develop what some refer to as \"flippy tails.\" This means that the appendages of the root, i.e. legs, arms, etc., will start to curl up, making the shape of a \"J\". That is also a tell tale sign for wild roots that have been transplanted back to a bed, as someone mentioned in the thread - when you transplant you are loosening up the soil and creating the potential for \"J\" roots. The effect would less drastic on a much younger and smaller root. Best of luck.
Tanner