Yes, mRNAs found in prokaryotes differ from those of eukaryotes in a number of ways. Here’s a look at the differences between prokaryotic mRNA and eukaryotic mRNA:
Prokaryotic mRNA:
Is synthesized in the cytoplasm by the transcription of operons
Is polycistronic (codes for more than one protein)
Transcription is coupled with translation
Does not contain both 5′ cap and 3′ tail
Has a very short lifespan and undergoes very little modifications after transcription
Eukaryotic mRNA:
Is synthesized in the nucleus by the transcription of single genes
Is monocistronic (codes for a single protein)
Translation occurs only after transcription is complete
Contains both 5′ cap and 3′ tail
Has a relatively long and stable lifespan and undergoes major modifications after transcription