Yes, precisely! Apple cultivars stem from a single fruit, there's actually very little difference between Apples, pears, and some other tree fruits

Yeah the seeds from fruit/vegetables grown from seeds from big companies like Monsanto are programmed to not produce similar or viable fruit/vegetables so that farmers have to keep buying more seeds every year.

Both that and the pollen that fertilises the flower might not be from the desired variety

I've heard the same about Chapman (Johnny Appleseed). Apple's weren't the only seed he was planting on his tours....