White Dog With Blue Eyes Deaf. Congenital deafness is also linked to the merle gene, which causes a dog to have a merle (or dapple) coat and blue eyes. Dogs with predominantly white coats which is often caused by . The merle gene has been sequenced and shown to be a mutation in the . Congenital deafness is also linked to the merle gene, which causes a dog to have a merle (or dapple) coat and blue eyes. In certain breeds of dogs, the association between dogs' coat colors and the likelihood of deafness was noted by early breeders. Here are 10 dog breeds that may have baby blues.
Interestingly enough, there is a strong link between coat color and congenital deafness in dogs.
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