User:Shawndouglas/sandbox/sublevel1

Living organisms store information in their genetic material, using DNA or RNA as the information carrier. That information, or genetic code, essentially provides instructions for organism development, function, growth, and reproduction. In the late twentieth century, researchers were laying the groundwork for molecular diagnostics, the concept of examining an organism's genetic code and its associated biological markers to diagnose and treat disease on a more personalized basis. This requires an assay, an investigative procedure for assessing the presence of, or measuring the amount or functional activity of, a target analyte. In the case of molecular diagnostics, and more broadly molecular biology, the target is biological in nature, and thus biological assays are used. These biological assays are designed to accurately detect the presence of or enable counts of biological molecules, including DNA, RNA, proteins, cells, bacteria, and virus particles (e.g., viral plaque assays).