1. [10 points] As we discussed in class, in horses, black coat color is dominant to...

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1. [10 points] As we discussed in class, in horses, black coat color is dominant to red and determined by the E locus. This locus is epistatic over the A locus, which determines the distribution of black hair. Phenotype Genotype E_A_ Bay E_aa ee Black Chestnut Note that the underline (_) implies an unknown allele or genotype. Let's also consider the tobiano coat color pattern, which results in white markings on the horse (Figure 1). Tobiano is determined by a dominant allele (T). Horses without the T allele do not have white patterning. The tobiano white pattern on a bay foal (bay tobiano). a. [4 points] You breed a bay, solid colored stallion to a black tobiano mare three years in a row. The first foal is solid chestnut filly (female). The next two foals are colts (male), one is a bay tobiano and the other is a black tobiano. What is the genotype of the stallion, and of the mare to which he was bred? 1. [10 points] As we discussed in class, in horses, black coat color is dominant to red and determined by the E locus. This locus is epistatic over the A locus, which determines the distribution of black hair. Phenotype Genotype E_A_ Bay E_aa ee Black Chestnut Note that the underline (_) implies an unknown allele or genotype. Let's also consider the tobiano coat color pattern, which results in white markings on the horse (Figure 1). Tobiano is determined by a dominant allele (T). Horses without the T allele do not have white patterning. The tobiano white pattern on a bay foal (bay tobiano). a. [4 points] You breed a bay, solid colored stallion to a black tobiano mare three years in a row. The first foal is solid chestnut filly (female). The next two foals are colts (male), one is a bay tobiano and the other is a black tobiano. What is the genotype of the stallion, and of the mare to which he was bred?