How can a plant have the roots of one tree and the fruit in another tree?

This phenomenon occurs through a process called grafting, where the roots of one tree (the rootstock) are joined with the stem or branches of another tree (the scion). This technique allows the root system to support the growth of a different variety of fruit-bearing tree, combining the hardiness of the rootstock with the desirable fruit characteristics of the scion. Grafting is commonly used in horticulture to enhance fruit production and improve disease resistance. As a result, a single plant can exhibit roots from one species while producing fruit from another.