post-transcriptional regulation

Post-transcriptional regulation refers to the processes controlling gene expression after DNA has been transcribed into messenger RNA (mRNA). It determines when, where, and how much protein is made from that mRNA. This regulation involves modifications to the mRNA, such as splicing (removing non-coding regions), adding protective caps or tails, and controlling its stability and movement within the cell. It also includes mechanisms like microRNAs that can block or degrade mRNA. These controls ensure cells produce the right proteins at the right times, adapting to changes and maintaining proper function.