A particular gene in dogs contributes to coat color. The two alleles exhibit incomplete dominance.  Dogs with genotype mm have normal pigmentation; genotype Mm leads to “dilute” pigmentation; genotype MM produces an all-white dog.  If a breeder mates a normal dog with a white dog, what will be the genotypes and phenotypes of the puppies?  If two Mm dogs are mated, what is the probability that a puppy will be white?

Imagine that feather color in parrots is controlled by one gene with two alleles: "P" and "p" "P" is completely dominant and codes for green feathers "p" is recessive and codes for blue feathers If a green parrot and a blue parrot have offspring, and half of their offspring are green and half are blue, what was the genotype of the green parrot? (hint: this was a test-cross) Pp PPp PP pp

In dogs, the color black is dependent upon the dominant allele B and white upon the recessive allele b. If two heterozygous black dogs mate, what genotypes and phenotypes may show up in the F1 generation?

Labrador retrievers are commonly black, brown, or yellow. Two different genes determine coat color in Labrador retrievers. The B gene determines pigment color (B is black, bb is brown). The E gene determines whether the pigment can be deposited in the hair shaft: ee prevents any pigment from being deposited, resulting in yellow dogs. You want to breed Labrador retrievers, and you cross a true-breeding brown Labrador retriever to a true-breeding yellow Labrador retriever. All 15 of the F1 puppies are black. After the puppies grow up, you cross two of the F1 black dogs together. In the F2 generation you get 8 black puppies, 4 yellow puppies, and 3 brown puppies. Part 1 What is/are the possible genotype(s) of the true-breeding brown lab in the P generation? O bbEE Brown bbee O bbEe Could be either answer bbEE or bbEe Part 2 What is/are the possible genotype(s) of the true-breeding yellow lab in the P generation? Obbee Bbee BBee Could be either bbee or Bbee. O Could be either Bbee or BBee.…