Berna Sozen is Assistant Professor at the Department of Genetics, Yale School of Medicine and affiliated faculty of Yale Stem Cell Center. Dr. Sozen first trained as a Reproductive Biologist at Akdeniz University, Turkey and later Developmental Stem Cell Biologist at the University of Cambridge, UK. She then undertook her post-doctoral research first at Cambridge-UK, and later at the Caltech-USA during which she developed in vitro systems to model mammalian early embryogenesis using various types of embryo-derived stem cells, in Magdalena Zernicka-Goetz group. Her independent group is now studying how embryo-environment interactions direct developmental patterning in human embryogenesis with long-term aim to understand origins of developmental disease.