RNA (ribonucleic acid) is a molecule that is essential for various biological processes, including protein synthesis, gene expression, and genetic regulation. It is similar to DNA, but is typically single-stranded and is made up of different nucleotides. RNA can be transcribed from DNA and translated into proteins, or it can play regulatory roles in the cell. Studying RNA requires specialized skills, such as RNA extraction, purification, and analysis. Understanding RNA can provide valuable insights into cellular function and disease mechanisms.