Mitophagy (image) University of Missouri-Columbia Share Print E-Mail Caption This embryo was treated to delay the degradation of sperm, or male mitochondria. Sperm mitochondria are in red, paternal and maternal chromosomal DNA in blue, and the ubiquitin protein in green. Credit MU News Bureau Usage Restrictions None Share Print E-Mail 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.