A key difference between prokaryotic operons and eukaryotic transcription regulation is that
- A
Operons exist only in viruses
- B
Eukaryotes lack any transcription regulation
- Ccheck_circle
Operons cluster co-regulated genes for polycistronic mRNA; eukaryotes regulate genes individually with monocistronic mRNAs
- D
Both produce identical polycistronic mRNAs
Explanation
Bacterial operons: many genes from one promoter on one mRNA, co-regulated. Eukaryotes: typically one mRNA per gene, complex promoter + enhancer architecture per locus.