Do Prokaryotes Have Post Transcriptional Modification?

RNAs from eukaryotes undergo post-transcriptional modifications including: capping, polyadenylation, and splicing. These events do not occur in prokaryotes. mRNAs in prokaryotes tend to contain many different genes on a single mRNA meaning they are polycystronic.

Does post-transcriptional modifications occur in prokaryotes?

There are post-translational modifications in prokaryotes, but they are less common and mostly of a different nature. Bacteria do not have systems for N-linked or O-linked glycosylation and don't have widespread serine and tyrosine phosphorylation, for example.

Does transcription occur in prokaryotes?

Initiation of Transcription in Prokaryotes. Prokaryotes do not have membrane-enclosed nuclei. Therefore, the processes of transcription, translation, and mRNA degradation can all occur simultaneously.