A polymerase chain reaction, or PCR, consists of three steps: DNA denaturation, primer annealing and extension. These steps are repeated between 20 and 35 times to synthesize the correct quantity of the DNA of interest. ... More »

PCR, or polymerase chain reaction, uses repeating cycles of heating and cooling to replicate strands of DNA from a sample. PCR can amplify and copy a single gene from a sample multiple times. More »

A PCR machine, also known as a thermal cycler, is a DNA amplifier that regulates temperature and amplifies segments of DNA via the polymerase chain reaction. As Wikipedia points out, PCR machines are also sometimes used ... More »

PCR, or polymerase chain reaction, uses repeating cycles of heating and cooling to replicate strands of DNA from a sample. PCR can amplify and copy a single gene from a sample multiple times. More »

PCR in biology stands for polymerase chain reaction. It refers to a process of multiplying or amplifying a small amount of DNA to carry out more conclusive research or data analysis. More »

The polymerase chain reaction cycle is a three-step process that includes denaturation, annealing and elongation. This cycle is used to amplify a specific gene from a copy of DNA. It is used in forensics to isolate blood... More »

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A PCR primer, or polymerase chain reaction primer, is a short segment of DNA that researchers use to amplify, or replicate, a targeted portion of the DNA molecule. This results in billions of copies of the targeted area ... More »