Which of the following is a key difference between gene regulation in prokaryotes and eukaryotes?

• A. Eukaryotic genes are usually organized into operons.
• B. Eukaryotic gene regulation involves chromatin remodeling.
• C. Prokaryotic gene regulation occurs mainly at the post-transcriptional level.
• D. Eukaryotic gene regulation does not involve transcription factors.

Answer: (B)