In previous years, big advances have been made in understanding of dog genetics. Different traits or inherited diseases differ among each other in modes of inheritance. Progress in the field of dog genetics, the CanMap project and recognition of a dog as a model for a number of inherited diseases in humans led to identification of mutations associated with many different diseases and traits found in various dog breeds.
Now breeders can take care of their breeding stock by DNA testing for neurodegenerative, cardiovascular, sensory, renal, metabolic and other numerous disorders. A lot of information of dog disease genetics was acquired in a short amount of time. Although it will take time to fully come to understanding all of the findings, it is necessary for breeders to understand the DNA tests results they get for their dogs. To be able to put the results to use in practice, basic knowledge of modes of inheritance is needed.