Describe one difference between PCR and recombinant DNA technology

rDNA technology is technology of creating new combination of DNA While Polymerase chain reaction (PCR) is one of the techniques used in r DNA technology for amplification of particular DNA fragment. Polymerase chain reaction (PCR) is used in molecular biology to amplify a single copy or a few copies of a segment of DNA across several orders of magnitude, generating thousands to millions of copies of a particular DNA sequence.