In jolly old England an apple was found on a tree that was exactly half green & half red. They say this is a one in a million chance. Apparently this does happen because "they" also claimed in the article that the red side usually tastes sweeter than the green. It is claimed it is the result of genetic mutation known as chemera. If it is a stable mutation, then the tree will produce more next year.
Notice that the genetic code is already there to produce green or red? The apple is still an apple. The Telegraph
I raised thee up under the apple tree: Song of Solomon 8:5