Here you will learn, what is PCR, and what are the Polymerase chain reaction steps. PCR is the short name of polymerase chain reaction. It plays a vital in the diagnosis of fatal diseases like covid-19, Hepatitis C virus, Human Immunodeficiency virus, and many others.

Polymerase chain reaction steps (PCR steps)

PCR (Polymerase Chain Reaction) method used to detect the DNA of certain pathogens like COVID-19, Hepatitis B virus, Hepatitis C virus, and other such polymerase chain reactions.

Polymerase Chain Reaction is also used in the research field for research purposes. PCR (Polymerase Chain Reaction) gives a hundred percent accuracy in the result. 

It is essential for DNA synthesis.

Polymerase chain reaction steps ( pcr steps ), principle, procedure
PCR cycle steps

Here is the PCR (Polymerase Chain Reaction) 4 steps cycle. . A list of four steps of PCR is there. 


It is the first step in the 4 steps of PCR to break the bond between DNA or RNA at the temperature between 94 to 98C.


In this step, the temperature drops to 75C. In this phase primer bind with complements with sequencing order on DNA single strand. Mostly Annealing temperature set between 50 and 75 Centigrade for 30 seconds to one minute. 


In this step, a loosen nucleotide of every base is added. Each nucleotide combines with their complements to form two double-stranded DNA strands


This is the final step of the polymerase chain reaction. After the synthesis of two identical strands, the PCR cycle was completed.

What is the last step of pcr?

Pcr consist of four steps.
1. Denatur
2. Annealing
3. Extension
4. End of cycle

What is the optimal temperature in denaturation Stage?

94 C to 98 C temperature is required for breaking the DNA or RNA bonds.

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