In rho-dependent termination, what does rho do?

• A. Rho binds rut on nascent RNA and uses ATP to catch up to RNA polymerase and cause release.
• B. Intrinsic GC-rich hairpin followed by poly-U sequence terminates transcription.
• C. RNA polymerase terminates when encountering a terminator sequence.
• D. Ribosome collision terminates transcription.

Answer: (A)