Primer

A primer is a short, specialized piece of DNA or RNA used in molecular biology to initiate the process of copying a specific segment of genetic material. Think of it as a starting point or a bookmark that tells the DNA copying machinery exactly where to begin. Primers are essential for techniques like PCR (polymerase chain reaction), allowing scientists to selectively amplify and analyze particular DNA sequences. They are designed to match specific sequences, ensuring precise targeting during genetic studies, medical diagnostics, and research.