Unlike processing of the primary transcript, RNA editing occurs at the level of mRNA.

Question

Quizplus · Accepted Answer

RNA editing is a post-transcriptional modification that can occur at the level of mature mRNA. It involves changes in the nucleotide sequence of mRNA molecules through the addition, deletion, or modification of specific bases, which can affect the coding potential and stability of the transcript. In contrast, processing of the primary transcript involves a series of steps that convert the initial RNA molecule into a functional mRNA molecule, including capping, splicing, and polyadenylation, and occurs in the nucleus before the mRNA is exported to the cytoplasm for translation.

Unlike Processing of the Primary Transcript, RNA Editing Occurs at the Level