Virus and spyware definitions are files that act like an encyclopedia of known malicious software, including viruses, spyware, and other potentially unwanted software.
Highly accurate DNA parental testing became available in the 1980s with the development of RFLP. In the 1990s, PCR, developed in 1983, became the standard method for DNA parental testing. A simpler, faster, and more accurate method of testing than RFLP, it has an exclusion rate of 99.99% or higher.
Use in the Legal System. As our understanding of genetics and DNA grew, so did the possible applications of the science. DNA testing entered the U.S. legal system in 1987, when Tommy Lee Andrews of Florida was convicted of rape after tests matched a sample of his blood with semen left at the crime scene.