The Bovine Heritage of the Yak (IMAGE) Ludwig-Maximilians-Universität München Caption The first systematic genome-wide comparison of the genetic heritage of yaks and cattle shows that about 1.5 percent of the genome of Mongolian yaks is derived from domesticated cattle. Credit Sonja_Mathis Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.