Why are there so many tests for PRA, and what do the results mean for my dog or breeding program? Valeria A. November 23, 2020 20:36 Follow You can learn more about PRA by visiting Progressive Retinal Atrophy in Dogs Explained Related articles What is a Linkage Test? How do I interpret your results and how do I use them to make breeding decisions? Do you test for color dilution alopecia? In the Health Section, what does it mean for my dog if he or she has zero, one, or two copies of a variant? How does Embark estimate age? Comments 0 comments Please sign in to leave a comment.