Forensics and DNA. DNA has been notably important to the field of forensic science. The discovery of DNA has meant that the guilt or innocence of a person who is investigated for a crime can be determined. It also means that scarce evidence can still yield vital clues regarding the perpetrator of a crime.
Then, what is DNA in forensic science?
The application of genetic testing for legal purposes. DNA forensics is a branch of forensic science that focuses on the use of genetic material in criminal investigation to answer questions pertaining to legal situations, including criminal and civil cases.
How can Forensic scientists use DNA in a crime?
To eliminate the majority of this list when the forensic DNA is a man's, crime lab technicians conduct Y-STR analysis. This suspect DNA profile is then compared to the sample found at the crime scene to definitively identify the suspect as the source of the crime scene DNA.
How does forensic DNA testing work?
Parental, forensic and genetic testing look for similarities in the genetic markers between two biological samples. Because all cells in the body contain exactly the same DNA, samples can be taken from almost anywhere in the body, including skin, hair follicles, blood and other bodily fluids.