PCR Reverse Transcriptase the best biomedical testing

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Reverse transcription polymerase chain reaction (RT-PCR) is a variety of the PCR Reaction polymerase chain reaction,most commonly used in molecular biology. PCR reactions generate many copies of a particular DNA sequence using a process termed "amplification".

In RT-PCR an RNA strand is first reverse transcribed into its DNA complement using the enzyme reverse transcriptase, and the resulting cDNA is amplified using traditional or real-time PCR.

PCR AND THERMOCYCLERS

The combination of thermocyclers and PCR application have allowed a massive leap in the the understanding of the human genome and life itself!

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Reverse Transcriptase PCR (Not to be confused with Real Time PCR) in comparison to traditional approaches (i.e., Northern blot, dot blot and hybridization protection assays and in situ hybridization) RT-PCR-based assays are the most common method for characterizing or confirming gene expression patterns and comparing mRNA levels in different sample populations.

Since the first reports of quantitative RT-PCR [2], the use of this technique has grown at an exponential rate. Despite the power and relative ease growth, the ability of RT-PCR to accurately quantify mRNA levels is hampered by a technical hurdle. Specifically, as the PCR greatly amplifies the target, errors are also amplified.

As a result, variability can be very large and preclude accuracy and reliable quantification. For this reason, quantitative RT-PCR is viewed with skepticism by many investigators and reviewers. Such concern can be obviated by thoughtful experimental design and carefully validating the technique for a given gene or a given laboratory.

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