Welcome to the Department of Biological Sciences at ETSU! We currently have 18 full-time faculty and two lecturers offering courses that help prepare our graduates for careers in the health sciences, natural resource conservation, industry, and academia. Our graduate program is very active and includes a Master of Science research degree and a Ph.D. program in Biomedical Sciences. One of the strengths of our department is the involvement of undergraduate students in research, with faculty members enthusiastically accepting undergraduates as contributing members of their research teams. We firmly believe that the best way to learn biology is to do it! - Joe Bidwell, Professor and Chair of Biological Sciences
Dr. Karl Joplin
Physiology and molecular biology of diapause, Insect behavior and circadian rhythms, Stress response of insects
Ohio State University, PhD 1989
The broad scope of my research is to study the changes to cellular and physiological functions during the alternative life stage of diapause. Diapause is an aspect of their life cycle that insects use to survive winter conditions. As such it has similarities to other interrupted life stages as the dauer larval stage of Caenorhabditis elgegans, hibernatin of vertebrates, sporulation of bacteria and yeast, send dormacy of plants and perhaps even the Go stage of the cell cycle. The flesh fly, Sarcophaga crassipalpis, is an attractive organism for this study because the developmental decision to enter into either diapause or to continue development is the enviromental cue of the night length received during a daylength. My research is opening new approaches to this area by identifying specific genes being expressed during diapause.