In dogs, T = dominant allele for long tail, t = recessive allele for short tail, B = dominant allele for brown, and b = recessive allele for black.

  1. In dogs, T = dominant allele for long tail, t = recessive allele for short tail,
  2. B = dominant allele for brown, and b = recessive allele for black. When completing the cross TtBb x TtBB, what proportion of the F1 is ttBB?
  3. What is the probability of a blue-eyed (recessive) mom and a brown-eyed (dominant) dad having a brown-eyed child? Consider all possible genotypes of Dad at this gene and give the probabilities associated with each genotype.
  4. If the couple in b, had a blue eyed child, what is the probability of them subsequently having a brown eyed child and a blue eyed child?

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