Key component in mother's egg critical for survivial of newly formed embryo

Key component in mother's egg critical for survivial of newly formed embryo: Scientists have discovered that a protein, called TRIM28, normally present in the mother's egg, is essential right after fertilization, to preserve certain chemical modifications or 'epigenetic marks' on a specific set of genes. This newly published study paves the way for more research to explore the role that epigenetics might play in infertility.