Concept
Version 7
Created by Boundless
Discovery and Detection of Viruses
The structure of the icosahedral cowpea mosaic virus
In the past, viruses were classified by the type of nucleic acid they contained, DNA or RNA, and whether they had single- or double-stranded nucleic acid.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"CowpeaMosaicVirus3D."
http://en.wikipedia.org/wiki/File:CowpeaMosaicVirus3D.png
Wikimedia Commons
CC BY-SA 3.0.