At John Hopkins, Dr. Onyango trained more than 20 trainees, gave talks at several international scientific meetings, authored more than 25 peered reviewed scientific research publications, including pioneering work on functional genomics and discovery of protein deacetylation in mitochondria. Dr. Onyango received the 2003 Eminent Scientist of the year award from International Research Promotion Council in recognition of his Functional Genomics research. He did his postdoctoral studies on Neurobalstoma Tumor Suppressor genes at the International Institute of Molecular Pathology in Vienna and on Epigenetics in the division of Medical Genetics at Johns Hopkins University School of Medicine. Dr. Onyango earned a PhD in Human Molecular Genetics from the University of Vienna. Prior to that, he graduated from University of Nairobi, where he obtained both his BSc (Hons. in Chemistry and Biochemistry) and MSc in Biochemistry.