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.
Function. The use of RNA in retroviruses is for the replication of the viral genome. The viruses use reverse transcriptase to create DNA in the cell's cytoplasm. The DNA is then incorporated into the host cell's nucleus and DNA.After the viral genes are incorporated into the host's DNA, the normal cell processes transcribe the protein's necessary for viral replication.he viruses use reverse transcriptase to create DNA in the cell's cytoplasm. The DNA is then incorporated into the host cell's nucleus and DNA. After the viral genes are incorporated into the host's DNA, the normal cell processes transcribe the protein's necessary for viral replication.