I'm not sure why you want DNA testing, but I have done it with my Bailey. Collies can have a genetic defect that causes sensitivity to about 30 different drugs. If they get any of them, it could kill them. I did lose a collie to this problem many years ago. So I did the test, just a cheek swab, sent it in and got the results in about a week. My dog is what they call mutant/mutant for the MDR1 gene. This means he could die if he gets one of the drugs, so I'm very glad I had the test. Is this the kind of thing you were talking about?