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PCR

PCR

DNA Isolation

DNA Isolation

DNA isolation protocols can be fast and straightforward or complex and time-consuming depending on the type and quality of DNA required for further processing. For example, plasmid DNA extraction is a bit more complicated than genomic DNA extraction because of the need for an appropriate lysis method to separate plasmid DNA from gDNA during isolation. However, for specific applications, such as long-range DNA sequencing that require a good yield of high- quality DNA samples, we need to follow...

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Related Experiment Video

Updated: Oct 27, 2025

Rapid Characterization of Genetic Parts with Cell-Free Systems

Rapid Characterization of Genetic Parts with Cell-Free Systems

Published on: August 30, 2021

General PCR.

Kirstie Canene-Adams¹

¹Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.

Methods in Enzymology

|September 10, 2013

Summary

Polymerase chain reaction (PCR) rapidly amplifies DNA or RNA segments for detection and analysis. This essential molecular biology technique supports diverse applications, from genetic disease diagnosis to forensic science.

Area of Science:

Molecular Biology
Genetics

Background:

Polymerase chain reaction (PCR) is a cornerstone technique in molecular biology.
It enables the targeted amplification of specific nucleic acid sequences.

Purpose of the Study:

To explain the fundamental purpose and applications of PCR.
To highlight its role in DNA/RNA amplification for detection and analysis.

Main Methods:

The core method involves the enzymatic amplification of a target DNA or RNA sequence.
Techniques like agarose gel electrophoresis are used for detection.

Main Results:

PCR generates a high quantity of specific DNA/RNA copies from a small initial sample.
Successful amplification allows for subsequent detection and analysis.

Keywords:

Agarose gel Denaturation, annealing, and extension Phenol-chloroform extraction technique Polymerase chain reaction (PCR)Thermal cycler, PCR

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Last Updated: Oct 27, 2025

Rapid Characterization of Genetic Parts with Cell-Free Systems

Rapid Characterization of Genetic Parts with Cell-Free Systems

Published on: August 30, 2021

Genotyping of Plant and Animal Samples without Prior DNA Purification

Genotyping of Plant and Animal Samples without Prior DNA Purification

Published on: September 24, 2012

Polymerase Chain Reaction: Basic Protocol Plus Troubleshooting and Optimization Strategies

Polymerase Chain Reaction: Basic Protocol Plus Troubleshooting and Optimization Strategies

Published on: May 22, 2012

Conclusions:

PCR is indispensable for gene amplification, modification, and cloning in expression studies.
Its utility extends to paternity testing, genetic disease diagnosis, forensics, and pathogen detection.