Hambone,
I agree with all of what’s been said already but some such as wolf river may be fairly true to type Breeding New Varieties of Fruit. Why do some apples look like their parents? There are dominant genes even amongst diploids that make them appear true to type. Many apple breeders know this information and breed and cross certain apples for those reasons. Not every apple will be true to type but as big horse creek farms says about wolf river " An interesting thing about Wolf River is its occasional ability to reproduce itself true-to-variety from seed. This is a very uncommon trait as nearly all apple varieties are self-unfruitful; i.e., they are unable to self-pollinate to produce apples on their own. In order to produce fruit, their blossoms must be fertilized with the pollen of another separate variety. All the apples produced by the “mother tree” as a result of this cross-pollination will always be the same but the seeds of these fruits will be a genetic cross of both parent trees, the mother tree and the pollen-donating tree. These “hybrid” apple seeds are thus unable to grow into trees identical to the original mother tree, except in rare cases like Wolf River." - Wolf River Story. Fuji is an apple with highly dominant genes so many of its second and even third generation are good keepers with sweet flavor http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.474.116&rep=rep1&type=pdf.
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