DNA test The DNA test verifies the presence of the dominant (PATN1) mutation. Sample 20 to 30 - hair roots - envelope or 5 mL - blood - K3 EDTA tube Turnaround time 2 to 5 working days Results description The DNA test verifies the presence of the dominant (PATN1) mutation and presents results as one of the following: N/ - Negative for PATN1. Absence of the dominante PATN1 gene - non spotted horse. PATN1/N - Positive heterozygous for PATN1 (Dominant). Presence of one copy of the dominant PATN1 gene responsible spotted coat. The horse can pass the PATN1 variant to 50% of their progeny when bred. PATN1/ - Positive homozygous for PATN1 (Dominant). Presence of two copies of the dominant PATN1 gene responsible for spotted coat. The horse will pass the PATN1 gene to 100% of its offspring. Additional information