Reverse transcription polymerase chain reaction (RT-PCR) is a specialized molecular biology technique used to amplify RNA molecules into complementary DNA (cDNA) for further analysis. It involves the use of a reverse transcriptase enzyme to convert RNA molecules into cDNA, followed by the use of a polymerase chain reaction (PCR) to amplify the cDNA. This technique is commonly used in research to study gene expression, viral detection, and disease diagnosis. RT-PCR is a specialized skill that requires training and expertise in molecular biology techniques.