EVERYDAY SCIENCE

Detailed explanation-1: -DNA profiling is a forensic method used for the detection of people by their DNA characteristics.

Detailed explanation-2: -Most forensic scientists and crime lab technicians use DNA profiling to identify criminals and victims using trace evidence like hair or skin samples.

Detailed explanation-3: -DNA fingerprinting is used in a variety of situations, such as criminal investigations, other forensic purposes and paternity testing. In these situations, one aims to “match” two DNA fingerprints with one another, such as a DNA sample from a known person and one from an unknown person.

Detailed explanation-4: -DNA amplification is accomplished through the use of a technique known as Polymerase Chain Reaction (PCR). PCR is a process in which millions of copies of a specific sequence of DNA can be made in a matter of only a few hours.

Detailed explanation-5: -The most common form of DNA analysis is called polymerase chain reaction (PCR). The development of PCR testing has greatly advanced the field of forensic DNA testing by increasing the success rate of the analysis of old, degraded, or very small biological evidentiary samples.