Dog Genes At Work

Genes for Coloration

Some things you may not know about the genes responsible for coloring a dog.

Hybrid Vigor

An explanation of how “hybrid vigor” works on the genetic level.

Negative Recessive Traits

Some of the traits that the “purebred/inbred” dogs suffer from and why.

For more information and research on the effects of inbreeding and crossbreeding see the University of Pennsylvania School of Veterinary Medicine website: