Mammalian Family Tree (IMAGE) University of California - Berkeley Caption A Feature Frequency Profile comparison of mammalian genomes produces the same phylogenetic tree whether using whole genomes or just introns, which supposedly carry no genetic information. Credit Sung-Hou Kim laboratory, UC Berkeley 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.