PCR process

Mix the DNA sample, primers, free nucleotides and DNA polymerase heat to 95°C to break the hydrogen bonds and separate the two strands cool to 50°C so that the primers can bind to the separated strands heat to 70°C so that DNA polymerase creates a copy of the sample by complementary base pairing using the free nucleotides leave the mix for about 1 min so the sample can be amplified the cycle can be repeated so that there is enough DNA for a DNA profile