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The three-step PCR process, or polymerase chain reaction, is used to amplify or copy DNA sequences. First, the two strands of DNA separate. Second, RNA primers anneal or attach to the DNA. Third, heat stable polymerase c... More »

www.reference.com Science Biology Molecular Biology & DNA

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 »

www.reference.com Science Biology Molecular Biology & DNA

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 »

www.reference.com Science Biology Molecular Biology & DNA
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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 »

www.reference.com Science Biology Molecular Biology & DNA

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 »

www.reference.com Science Biology Molecular Biology & DNA

Primers are small DNA sequences that are designed to start DNA replication in a laboratory technique called polymerase chain reaction, or PCR, to amplify certain segments of DNA. Forward and reverse primers differ in the... More »

www.reference.com Science Biology Molecular Biology & DNA

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 »

www.reference.com Science Biology Molecular Biology & DNA