Two Become One (IMAGE) Brown University Caption Researchers have revealed the structure of proteins in flowering plants and protozoans that enable sperm cells to fuse with eggs to form a new individual. The research team is hopeful that the structural information might be helpful in understanding gamete fusion in humans, which remains mysterious. Credit Fedry et. al. 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.