“The apple doesn’t fall far from the tree”, but most apple seeds don’t grow where they are dropped - they are carried away by birds or rodents and seed elsewhere. Also, most apples aren’t true to seed anyway - plants grown from seed don’t bear the same fruit
Every variety of apples is a clone taken from a cutting that eventually traces back to the original tree of that variety. These cuttings are grafted onto rootstock which has been bred separately for its own characteristics (root mass size, upper biomass size).
Yeah, it’s like taking Adam’s rib to make Eve, but only the upper body. The lower body comes from Steve!