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How did the invention of PCR lead to DNA fingerprinting?

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Because most samples retrieved from crime scenes seldom contain enough DNA to do more than simple tests. By using PCR to create billions of copies it allows forensic people to do more extensive analyses. read more

Two oligonucleotide DNA primers are used to hybridise to two corresponding nearby sites on opposite DNA strands. Thus two new copies of the sequences of interest are generated. Repeated denaturation , hybridisation and extension in this fashion produce an exponentially growing number of copies of the DNA of interest. read more

The use of PCR in DNA fingerprinting increases the discriminating power of the process. DNA.. read more

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