Fig. 10.6 Steps involved in PCR

Fig. . Steps involved in PCR XII Std Zoology Chapter XII Std Zoology Chapter Applications of Biotechnology As a technique which can amplify even minute quantities of DNA from any source, like hair, mummified tissues, bones or any fossilized materials. PCR technique can also be used in the field of forensic medicine . A single molecule of DNA from blood stains, hair, semen of an individual is adequate for amplification by PCR. The amplified DNA is used to develop DNA fingerprint which is used as an important tool in forensic science.Thus, PCR is very useful for identification of criminals. PCR is also used in amplification of specific DNA segment to be used in gene therapy.