PCR, unlike culture, does not require viable (live) bacteria present in the specimen. Results can be had in 2-3 hours instead of 24-36 hours. Despite these advantages, PCR can give results that are falsely-negative or falsely-positive.
types of pcr: AFLP -PCR. Allele-specific PCR. Alu-PCR. Assembly -PCR. Assemetric -PCR. Colony -PCR. Helicase dependent amplification. Hot start pCR. Inverse -PCR. Insitu -pCR. ISSR-PCR. RT-PCR(REVERSE TARNSCRIPTASE). REAL TIME -PCR
Some common questions that researchers often encounter about PCR include: How does PCR work? What are the different types of PCR techniques? What are the limitations of PCR? How can PCR results be validated? How can PCR be optimized for better results? What are the potential sources of error in PCR? How can PCR be used in different research applications? What are the ethical considerations when using PCR in research? How can PCR be used in clinical diagnostics? What are the current advancements in PCR technology?
To revolutionize is to change drastically.
PCR is a biotechnological method to amplify your gene (DNA) of your interest. It produce millions of your DNA fragments hence used in cloning. There are variants of this method using the same thermocycling principle such as touch down PCR, gradient PCR, RFLP, multiplex PCR, Q PCR, RT PCR and so on.
We need to revolutionize this Government
The inventions of the telephone immediately began to revolutionize communication.
The use of dNTP is PCR and multiplex PCR
Difference between real time PCR and reverse transcription PCR is as follows:- 1. Real time PCR is donated as qPCR and on the other hand reverse transcription PCR is denoted as RT-PCR. 2. In qPCR, the template used is single strand DNA strand whereas in the RT-PCR, the template used in process is single strand of RNA. 3. The real time PCR enables both quantification as well as detection of the DNA in the real time whereas the RT-PCR enables only the quantification of the RNA and it is little bit slower process then the qPCR as it first produce the cDNA from the template RNA strand and then process it in the similar fashion as the traditional PCR.
Nested PCR is a variation of regular PCR that involves two rounds of amplification. It is often used when the target DNA is present in low concentrations. Nested PCR can increase the sensitivity and specificity of the test compared to regular PCR. Regular PCR, on the other hand, involves a single round of amplification and is commonly used for routine DNA amplification. Nested PCR is advantageous in detecting low abundance targets, while regular PCR is more suitable for general DNA amplification purposes.
PCR assays can be both qualitative and quantitative, depending on the method used. Qualitative PCR, often referred to as conventional PCR, detects the presence or absence of a specific DNA sequence. In contrast, quantitative PCR (qPCR or real-time PCR) measures the amount of DNA, providing information on the quantity of the target sequence in a sample. Thus, PCR can serve both purposes based on the specific assay design.
In qualitative PCR specific DNA fragment is detected while in quantitative PCR our target DNA sequence not only is detected but its amount is determined (after reaction we can calculate the amount of DNA we had in our sample)
Clinical microbiology: Viral load (HIV,HCV,HBV,...); Bacterial load (Salmonella, Mycobacterium,..); Fungal load( Candida, Cryptococcus, Aspergillus,....); Food microbiology; and Bacterial load (Listeria, Salmonella, Campylobacter,...). Clinical oncology: Minimal residual disease; Chromosomal translocations; and Single nucleotide polymorphism (SNPs). Gene therapy: Gene transfer estimation;and Biodistribution of vector. Gene expression: Cytokines; receptors,....... ANSWER A very important application of polymerase chain reaction (PCR) is in the field of forensic science. Sometime a sample of DNA may be too small to be of any use as it is. Thankfully, PCR allows a small sample of DNA to be amplified thus making many more copies of the DNA. Now instead of a small sample you have a large sample. Sample size is very important when involving other forensic techniques such as electrophoresis. (To give an analogy there is not much difference between 4 lbs and 6 pounds. However, if yo amplified both by 10,000, you will see that there is a noticeable difference of 20,000 lbs. PCR makes the difference in weight noticeable so that results of electrophoresis can be analyzed.