FREMONT, Calif., Oct. 1 /PRNewswire-FirstCall/ -- WaferGen Biosystems, Inc. (OTC Bulletin Board: WGBS - News), a leading developer of state-of-the-art gene expression, genotyping, cell biology and stem cell research systems, today announced the appointments of Sharat Singh, Ph.D., as senior vice president of research and development and Christopher S. Maki as vice president of worldwide sales. Dr. Singh and Mr. Maki both possess extensive experience in the life science industry with specific focus in the areas of gene expression, analytical and imaging instrumentation, and high-throughput assay technology.