Richard D. Berlin Center for Cell Analysis and Modeling, Department of Cell Biology, University of Connecticut Health Center, Farmington, CT, United States of America.|Richard D. Berlin Center for Cell Analysis and Modeling, Department of Cell Biology, University of Connecticut Health Center, Farmington, CT, United States of America.|Center for Engineering Learning & Teaching, University of Washington, Seattle, WA, United States of America.|Department of Computer Science, Cornell University, Ithaca, NY, United States of America.|Department of Mathematics, Adrian College, Adrian, MI, United States of America.|Richard D. Berlin Center for Cell Analysis and Modeling, Department of Cell Biology, University of Connecticut Health Center, Farmington, CT, United States of America.|Courant Institute and Department of Biology, New York University, New York, NY, United States of America.