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.
Pieces of the instructions on the genes can get knocked out or changed. When this occurs during the process of cell division, when the DNA is being copied to the new cell, a mutation occurs. If the mutation occurs in the wrong place -- in an active gene, for instance -- it can result in one of two things. It can disrupt the function of the cell, causing it to die. Or it can cause the cell to begin dividing wildly and become a cancer.