What is the role of primers in PCR?

What is the role of primers in PCR?

Step 1: Understand that PCR stands for Polymerase Chain Reaction, which is a method used to make many copies of a specific DNA segment.
Step 2: Know that primers are short pieces of DNA that are designed to match the beginning of the DNA segment you want to copy.
Step 3: Realize that during PCR, the temperature is changed to separate the two strands of the DNA.
Step 4: When the temperature cools down, the primers attach to the specific starting points on the single-stranded DNA.
Step 5: The enzyme Taq polymerase then starts adding nucleotides to the primers, building new strands of DNA.
Step 6: This process repeats, allowing for the exponential amplification of the target DNA segment.

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