I realize that both genes are present in each cell, I think that in the cases of codominance the first protein to become transcribed becomes the phenotype, or maybe only one of the genes transcribes, making a 50% chance for either or. A true example is brown and black horse hairs, with the codom showing fully brown and fully black hairs across the body, not uniformly colored hairs. Same with hypo boas, both genes are required for proper pigmentation, missing one gene results in a lighter hypo and lacking both would be even lighter, the super.
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It's just like the story of the grasshopper and the octopus. All year long the grasshopper stored up acorns for winter, while the octopus mooched off his girlfriend and watched tv. And then the winter came, and the grasshopper died, and the octopus stole all his acorns, and he got a race car. Is any of this sinking in?

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