Recessive Disorders (image) PLOS Caption The surprising rescue of disease symptoms in mice suggests new thinking about recessive disorders in humans. Potential phenotypic consequences of compound heterozygosity are represented by a continuum from dark (disease) to light (health). Credit Photo: L. Kallasvee/J.O. Andressoo; Model: Reet Aus Usage Restrictions Please cite the photgrapher, authors and PLoS Biology. 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.