Labrador Retriever Coat Color Inheritance
There are three acceptable coat colors in the Labrador retriever: black, yellow (with variation from fox-red to light cream), and chocolate. Black is the most common color, but the numbers of yellows and chocolates are on the rise.
Coat color is determined by the type of genes received from each of the parents. Black is the dominant color genetically. Simply put, if there is a black gene present in the dog's makeup, the dog will be black. A yellow coat is produced when a dog receives a recessive gene for this color from both of its parents. In the absence of a dominant black gene, the recessive genes can be expressed. Because of this, a black dog can produce yellow or chocolate offspring if it carries both a dominant black gene and a hidden recessive.
The chocolate color is also a recessive, but many variables come into play regarding the inheritance pattern of this color. The recessive chocolate factor can be carried by both black and yellow Labradors. There may also be a crossover or modifying effect involved with the chocolate recessive, because in several generations of breeding chocolate to chocolate a breakdown in pigmentation, eye coloring, and overall coat color often occurs.
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