In the meantime, here's a sneak peek, just a small sliceâthe first part of a 2-part excerpt from the addendum of Grantsmanship: Program Planning & Proposal Writing. The topic is the difference between a planning and an implementation (or program) grant proposal. Enjoy!
What is PCR (polymerase chain reaction)? Polymerase chain reaction (PCR) is a technique that is used to amplify trace amounts of DNA (and in some instances, RNA) located in or on almost any liquid or surface where DNA strands may be deposited.
A PCR or polymerase chain reaction is a laboratory procedure in which millions of copies of a specific piece of DNA are made. It is essentially an amplification method, whereby the tiniest amounts of DNA that may be present in blood, hair or tissues can be copied so that there is enough for analysis.ariations of PCR. There are several variations of the PCR technique. One commonly used and important variation is real-time PCR or quantitative PCR (q-PCR). Real-time PCR can be used to count the amount of DNA, or number of copies of a gene, that is present in a sample.