Motanache

http://en.wikipedia.org/wiki/Grafting#Scientific_uses

I saw a few trees grafted.

Instead of making very small fruit, began to make large fruit.

Whole different in shape, color.

Instead of wild apples.

They began producing big apples.

I expect the fruit to be done after the tree genetic pattern.

However, there are some living cells and

theirs multiplying, is coordinated only by genetic information inside them.

How could a small piece of another tree even change the color of the fruit?