The dolphins comprise the extant families Delphinidae (the oceanic dolphins), Platanistidae (the Indian river dolphins), Iniidae (the new world river dolphins), and Pontoporiidae (the brackish dolphins), and the extinct Lipotidae (baiji or Chinese river dolphin).
The answer should be C. Once the host cell transcribes a viral gene, the RNA is formed. The RNA is then translated in order to give us the viral proteins essential for the replication of the virus So the answer is when a cell transcribes a viral gene, the host cell then translates it.
What role does a transcription factor play in a signal transduction pathway? A. By binding to a plasma membrane receptor it initiates a cascade. B. It relays a signal from the cytoplasm to the plasma membrane. C.It activates relay proteins. D. By binding to DNA it triggers the transcription of a specific gene. E. It is a plasma membrane protein that binds signal molecules. Add your answer. Source.