What is the primary role of RNA in the central dogma?

The primary role of RNA in the central dogma of molecular biology is to carry the instructions from DNA to the ribosome, where proteins are synthesized. This process involves the transcription of genetic information from DNA into messenger RNA (mRNA), which then travels from the nucleus to the ribosome. At the ribosome, the mRNA serves as a template for assembling amino acids into polypeptides, translating the genetic code into functional proteins. This process emphasizes the importance of RNA in transferring and expressing genetic information, making it an essential intermediary between DNA and protein synthesis. The focus on mRNA in this role highlights its crucial function in facilitating the flow of genetic information within the cell.