The decision to have surgery also depends on what caused mitral regurgitation. It depends on whether it is caused by: A problem with the anatomy of the valve (primary regurgitation). Another heart problem (secondary regurgitation).
PCR (polymerase chain reaction) is a method to analyze a short sequence of DNA (or RNA) even in samples containing only minute quantities of DNA or RNA. PCR is used to reproduce (amplify) selected sections of DNA or RNA. Previously, amplification of DNA involved cloning the segments of interest into vectors for expression in bacteria, and took weeks. But now, with PCR done in test tubes, it takes only a few hours.
The polymerase chain reaction (PCR) is a technique widely used in molecular biology. It derives its name from one of its key components, a DNA polymerase used to amplify a piece of DNA by in vitro enzymatic replication.As PCR progresses, the DNA thus generated is itself used as a template for replication.CR is a process that is done to take a little bit of DNA as well as the enzyme DNA polymerase and amplify (increase) the DNA sample. In short, it's a way to make more DNA from a small sample. Source(s): tigerbyte16 Â· 7 years ago.