You can get a DNA test for your dog.
I know. I was surprised too, when I saw them while in line at PetSmart — you know, where they keep the impulse buys. In this case, a $124 impulse buy.
(I didn’t. I don’t need a DNA test to tell me that the cat is not a dog.)
To test your dog’s DNA, a cheek swab is required. Good luck.