Joseph,
There's different genes for orange. Most of the orange tomatoes are lower in lycopene. I believe when crossed with red tomatoes the red is dominant.
A few of the orange tomatoes have a different gene that makes the tomato high in beta carotene (actually there is at least one more pathway to orange, but I don't believe that genome is available commercially). It is sort of 'co-dominant' with red so crosses between this type of orange and red give you an orange-red fruit color in the first generation.
I'll be interested in seeing what your results are.
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