Their argument rests on the fact that the standard of Labrador Retrievers only includes Black, Chocolate and Yellow Labs, all of which are determined by the B and
E gene locations.
Not exact matches
When this happens, the B
location is superseded by the
E location, and the ee
gene for yellow will determine the color.
In the case of the Labrador Retriever, the particular
location of the
genes most involved in colors are the B and
E locations.