What is the role of the terminator in transcription?

The terminator in transcription plays a crucial role in signaling the end of the transcription process. During transcription, RNA polymerase synthesizes RNA by reading the DNA template. Once RNA polymerase reaches a terminator sequence in the DNA, it recognizes this specific signal and ceases RNA synthesis. This ensures that the RNA molecule is produced with the correct length and sequence, which is essential for its proper function in the cell. Without the action of the terminator, RNA polymerase would continue synthesizing RNA indiscriminately, potentially leading to the production of incomplete or erroneous RNA transcripts. Understanding this role highlights the precision and regulation required in gene expression.