Final answer:
False. Both eukaryotic and prokaryotic mRNA undergo processing before translation.
Step-by-step explanation:
False. After transcription, eukaryotic pre-mRNAs undergo several processing steps before they can be translated. These processing steps include the addition of a 5' cap, a 3'-poly-A tail, and splicing, which removes noncoding introns. This processing creates a mature mRNA molecule that is more stable and has a longer half-life than prokaryotic mRNA. Therefore, both eukaryotic and prokaryotic mRNA undergo processing before translation.