Final answer:
Intrinsic termination is a type of transcription termination in prokaryotes that does not require a specific protein. Rho-dependent termination occurs when the polymerase encounters a run of G nucleotides and stalls. Rho-independent termination occurs when the polymerase encounters a region rich in C-G nucleotides, causing the mRNA to fold into a hairpin loop.
Step-by-step explanation:
Intrinsic termination is a term used for the type of transcription termination in prokaryotes that does not require a specific protein. There are two types of termination signals in prokaryotes: Rho-dependent and Rho-independent.
In Rho-dependent termination, the polymerase encounters a run of G nucleotides on the DNA template and stalls. The rho protein then collides with the polymerase, releasing the mRNA from the transcription bubble.
In Rho-independent termination, the polymerase encounters a region rich in C-G nucleotides. This causes the mRNA to fold into a hairpin loop, causing the polymerase to stall and the mRNA to be released.