My days of active research are rapidly winding down. However, I still maintain a thirst for knowledge and scientific research. I now have interest in many areas of research. My research expertise and interests primarily revolve around regulation of gene expression, genetics, comparative biochemistry, and molecular evolution of mitochondrial DNA (mtDNA). I have been particularly interested in mtDNA in relation to evolutionary genetics and phylogenetic analyses. Utilizing mtDNA as an evolution tool, I have been involved in comparative/phylogenetic studies of: Old World Monkeys (established the rate at which mtDNA sequences change, which is ~10 times faster than single copy DNA); contributed to studies of different ethic human populations which led to the hypothesis of “Mitochondrial Eve” ; led mtDNA studies of 200 year-old human bones as a part of the “African Burial Ground Project at Howard University”; established the phylogenetic relationships of members of the Equus (horse) family which also led to the relationship of an extinct (quagga) horse species with today’s living horse species; and contributed to and studied the genetic relationship of the Northern and Southern White rhino, the results of these rhino studies are now part of conservation studies and efforts to save these severely endangered rhino species.
I have also studied various human diseases such as: breast cancer; HIV and AIDs; Leishmanisis; Lesch-Nyhan disease; leukemia; Chagas disease and transthyretin amyloid cardiomyopathy.
I also continue to find joy in participating in our Graduate Biochemistry laboratory course teaching hands-on molecular biology techniques designed for graduate students and working with my departmental colleagues on various research projects.