For over two decades the under-representation of African Americans in school science and the workplace has been a central concern for educators, policy makers, and researchers. Existing literature provides many accounts of the barriers to science career attainment. This study examined the science career trajectories of fourteen African American…

Despite being a landmark of 20th century biology, the "classical molecular gene concept," according to which a gene is a stretch of DNA encoding a functional product, which may be a single polypeptide or RNA molecule, has been recently challenged by a series of findings (e.g., split genes, alternative splicing, overlapping and nested…