What are genotypes and phenotypes, Biology

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The agouti locus in mice has three alleles: A is recessive and confers a black coat, A is dominant to a and confers an agouti coat, and AY is dominant to both and confers a yellow coat. AY is also a recessive lethal. In addition, the independently assorting c allele is recessive (to C) and prevents the mice from making any fur pigments at all, whether yellow, agouti or black. Two mice are crossed, and produce offspring in a ratio of 3 albinos: 2 yellow: 1 black. What are the genotypes and phenotypes of the parent mice?


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