To determine the phenotype of the rabbit with the genotype BbGg, we need to clarify the alleles represented by each letter and their associated traits.
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The letter "B" typically represents a black fur color (dominant), while "b" represents a different fur color (often brown or another color, recessive). Because the rabbit has at least one uppercase "B," it will have black fur.
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The letter "G" usually represents a specific eye color trait, with "G" potentially representing red eyes (dominant), and "g" representing a different eye color (often black, recessive). Here, the presence of an uppercase "G" would indicate that the rabbit has red eyes.
Putting that all together, a BbGg rabbit would have black fur and red eyes.
Therefore, none of the options a-d explicitly describes this phenotype, but based on the traits given, the rabbit with genotype BbGg has black hair and red eyes. If none of the provided options match exactly, it's possible that there is a mistake, or more context is needed regarding the traits associated with the letters in your options.