DNA fingerprinting is a “technique used to establish a link between biological evidence and a suspect in a criminal investigation” (DNA Fingerprinting). It starts with a sample of DNA obtained from a crime scene and then is compared to the DNA that is obtained from a suspect. The DNA is first extracted and then covered with restriction enzymes that produce bands. The bands produced are doubled are then run through gel electrophoresis for separation. The newly separated fragments go from a gel to a membrane and then are radioactively turned to a single form. Then the membrane is covered with a probe and incubate for a given time. Once the time is up the gel is washed to remove the probe and is then exposed to x-ray film. And upon completion a film of the bands must be made showing the DNA typing patterns (How DNA Fingerprinting
DNA fingerprinting is a “technique used to establish a link between biological evidence and a suspect in a criminal investigation” (DNA Fingerprinting). It starts with a sample of DNA obtained from a crime scene and then is compared to the DNA that is obtained from a suspect. The DNA is first extracted and then covered with restriction enzymes that produce bands. The bands produced are doubled are then run through gel electrophoresis for separation. The newly separated fragments go from a gel to a membrane and then are radioactively turned to a single form. Then the membrane is covered with a probe and incubate for a given time. Once the time is up the gel is washed to remove the probe and is then exposed to x-ray film. And upon completion a film of the bands must be made showing the DNA typing patterns (How DNA Fingerprinting