Answer:
b. unable to terminate transcription of some genes.
Explanation:
Rho protein is a polypeptide with 419 residues and is found in prokaryotic cells such as bacteria.
Termination refers to the point where a signal is made for transcription to stop. This usually occurs when a part of the DNA known as the terminator is transcribed. The transcription of this part halts then transcription process.
A lack of the rho protein means transcription of some genes won’t be able to be stopped( terminated).