In sheep, coat color is influenced by two genes. Gene A influences pigment production, while gene B produces black or brown pigment.
If two heterozygous white sheep were crossed and offspring were produced in a ratio of 12 white sheep to 3 black sheep to 1 brown sheep, what are the genotypes of the offspring?
Is this an example of dominant or recessive epistasis?
In labrador retrievers, pigment color is influenced by two genes. Gene A determines the type of pigment produced and gene B affects whether the pigment gets deposited in the hair shaft.
If two heterozygous black labrador retrievers were crossed and offspring were produced in a ratio of 9 black dogs to 3 brown dogs to 4 yellow dogs, what are the genotypes of the offspring?
Is this an example of dominant or recessive epistasis?