Nucleic acid amplification is a process by which specific DNA or RNA sequences are replicated or amplified in order to detect or analyze them. This technique is commonly used in molecular biology and diagnostics to amplify small amounts of nucleic acids for further study. Some common methods of nucleic acid amplification include polymerase chain reaction (PCR), loop-mediated isothermal amplification (LAMP), and transcription-mediated amplification (TMA). Nucleic acid amplification is a powerful tool for detecting and studying genetic material, and it has a wide range of applications in fields such as genetics, forensics, and medicine.