DNA is deoxyribonucleic acid, a molecule contained in cells that gives the genetic code for life.  The DNA data that is stored in a forensic DNA database such as the OCDA DNA Database is a STR DNA profile.  A STR DNA profile consists of data from regions of DNA, called short tandem repeats (STRs), which are highly variable among individuals, allowing the information to be used for human identification.  These regions of DNA do not contain genes, thus information regarding hair color, eye color, ethnicity, and disease, among other characteristics, cannot be obtained from a STR DNA profile.