Viruses are very specific in the types of organisms they infect. Viruses can only reproduce in living cells. This cycle contain several steps. During the first step the virus is about to come in contact with the cell. During this process the viral DNA attaches itself to the cell's DNA and hides.
Viruses contain certain enzymes needed to carry on their reproductive cycles.
Using the Viral Classification chart, answer the following questions . DNA as their nucleic acid. RNA as their nucleic acid. If a person were to have contracted cowpox, he would be immune to the small pox virus. A study of viral reproduction was under taken by a local university.