[Arid_gardener] Question from Home-Hort WWW page

[EPHARP@ATT.NET]

Our neighbor has an green apple tree that has done really well.  Some of the apples have fallen on my side and a little tree has grown.  It is about 8 fr high and about an inch diameter.  For the last 2 years it leafs out about a month after it's mother tree.  It has had no blossoms on it.  My question is will it every fruit?  Did it grown from a seed or is it from the root of the mother tree? thanks for your time