Polymerase chain reaction (PCR) is advance technique in recombinant DNA research with impact on molecular cloning and genetics. By PCR a target sequence of DNA can be amplified a billion fold in several hours. The different steps of PCR are Denaturation, Annealing and Primer extension.
The open access journals are peer reviewed scholarly journals of osteoporosis and physical activity. The top open access journals are freely available on the public internet domain, allowing any end users to read, download, copy, distribute, prink, search or link to the full texts of the articles. These provide high quality, meticulously reviewed and rapid publication, to cater the insistent need of scientific community. These journals are indexed with all their citations noted.
Last date updated on July, 2014