Final answer:
The described model of transcription termination in eukaryotes is RNA-based termination, where after RNA polymerase II transcribes the polyadenylation signal, it is destabilized and dissociates from the DNA.
Step-by-step explanation:
The described model of transcription termination in eukaryotes is called RNA-based termination. After RNA polymerase II transcribes the polyadenylation signal, it is destabilized and dissociates from the DNA. In this model, the termination signal is an RNA sequence that forms a secondary hairpin loop causing the dissociation of the polymerase from the DNA template and the newly transcribed RNA transcript.