[IB Biology SL at GHS: Genetics Reviews]

3. Using the example of genotypes below, how do we know that the coat colors for rabbits are codominant?

A) Because black is dominant to white.

B) Because white is dominant to black.

C) Because when black and white alleles are mixed, the result is gray hair (the colors of both alleles show up!). When the baby bunnies have the genotype BW, they have a gray color.

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Slichter