In this April 2018 photo provided by Rennie Pasquinelli, Murray, a mixed-breed dog, lay on a sofa in Ann Arbor, Mich. Pasquinelli, who is Murray's owner, recently got the dog's DNA tested to learn what breeds are in his background. Genetic testing for dogs has grown rapidly in recent years, fueled by companies marketing kits that offer to decode dogs' heritage and health as simply, or laboriously, as owners can swab a canine cheek. (Rennie Pasquinelli via AP)
In this April 2018 photo provided by Rennie Pasquinelli, Murray, a mixed-breed dog, lay on a sofa in Ann Arbor, Mich. Pasquinelli, who is Murray's owner, recently got the dog's DNA tested to learn what breeds are in his background. Genetic testing for dogs has grown rapidly in recent years, fueled by companies marketing kits that offer to decode dogs' heritage and health as simply, or laboriously, as owners can swab a canine cheek. (Rennie Pasquinelli via AP)
In this April 2018 photo provided by Rennie Pasquinelli, Murray, a mixed-breed dog, lay on a sofa in Ann Arbor, Mich. Pasquinelli, who is Murray's owner, recently got the dog's DNA tested to learn what breeds are in his background. Genetic testing for dogs has grown rapidly in recent years, fueled by companies marketing kits that offer to decode dogs' heritage and health as simply, or laboriously, as owners can swab a canine cheek. (Rennie Pasquinelli via AP)