8.4 Differences in gene expression between prokaryotes and eukaryotes

Question 1

Prokaryotes vs Eukaryotes (where transcription and translation occur)

Answer 1

P: no nucleus so transcription and translation take place in the same cellular compartments, and translation is often coupled to transcription
E: the nucleus separates transcription (occurs in nucleus) from translation (cytoplasm). Direct coupling of these two processes is impossible

Question 2

Prokaryotes vs Eukaryotes (Promoters and enhancers)

Answer 2

P: Accessible promoters (free of nucleosomes)
E: Enhancers stabalise RNA polymerase at promoter. Enhancers clear histones from promoter