In Labrador retrievers, a dog that has the genotype BBee, where BB produces black-pigmented fur and ee produces yellow-pigmented fur, would have fur and would exhibit .

Epistasis happens when two different genes interact in a certain way, affecting the expression of a particular trait (in this case, fur color). In Labrador retrievers, the presence of the ee genotype masks the alleles of the B gene, thus giving the fur a yellow color.

The other options are incorrect because they apply either to just one gene with two alleles (dominance, incomplete dominance, codominance) or because the combination of options is not possible (brown, the intermediate color, cannot be explained by epistasis, where the alleles in one gene mask the alleles of the other).

In Labrador retrievers, a dog that has the genotype BBee, where BB produces black-pigmented fur and ee produces yellow-pigmented fur, would have __________ fur and would exhibit __________.

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In Labrador retrievers, a dog that has the genotype BBee, where BB produces black-pigmented fur and ee produces yellow-pigmented fur, would have fur and would exhibit .