Department of Electrical Engineering and Computer Science, University of Tennessee, Knoxville, TN, USA.|Department of Electrical Engineering and Computer Science, University of Tennessee, Knoxville, TN, USA.|Department of Electrical Engineering and Computer Science, University of Tennessee, Knoxville, TN, USA.|Developmental Biology Program, Sloan-Kettering Institute, New York, NY, USA.|Department of Electrical Engineering and Computer Science, University of Tennessee, Knoxville, TN, USA.|Developmental Biology Program, Sloan-Kettering Institute, New York, NY, USA.