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In a group of Channel catfish, some individuals have a brown body and others have a white body. In this group, the gene for the body color trait has two alleles. The allele B is for a brown body, and the allele b is for a white body.
A certain Channel catfish from this group has a white body. This catfish has two alleles for a white body.
Based on this information, what is this Channel catfish's phenotype for the body color trait?
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