What basic structure do viruses share?

Answer:
Unlike prions and viroids, viruses consist of two or three parts: all viruses have genes made from either DNA or RNA, long molecules that carry genetic information; all have a protein coat that protects these genes; and some have an envelope of fat that surrounds them when they are outside a cell. Viroids do not have a protein coat and prions contain no RNA or DNA.

In short, just say that all viruses have a protein coat and either DNA or RNA.
First answer by ID1285832826. Last edit by ID1285832826. Question popularity: 1 [recommend question].