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Written answer/problems. Type the full answer to each part of the question Two autosomal genes, B...

Written answer/problems. Type the full answer to each part of the question

Two autosomal genes, B and C affect coat color of voles. The B gene has two alleles "B" and "b" and the C gene has two alleles "C" and "c." Here are the relationships between genotype and phenotype for these two genes:

Genotype Phenotype

   B-   C-      Black coat

   bb C-      Brown coat

   B-   cc      White coat

   bb cc      White coat

Answer both of the following:

Answer both of the following:

  1. Describe the relationship between genes B and C.
  2. In a cross between dihybrids for genes B and C, list all the possible phenotypes exhibited by the progeny, and, for each phenotype, calculate the expected proportion of the progeny that would exhibit that phenotype.
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