An Article in a Web Magazine. Provide the author name, article name in quotation marks, title of the Web magazine in italics, publisher name, publication date, medium of publication, and the date of access. Remember to use n.p. if no publisher name is available and n.d. if no publishing date is given.
The majority of viruses have capsids with either helical or icosahedral structure. Some viruses, such as bacteriophages, have developed more complicated structures due to constraints of elasticity and electrostatics.
A capsid is the protein shell of a virus. It is made of several protein subunits. The observable 3-dimensional subunits are called 'capsomeres'. The capsid encloses the nucleic acid of the virus.Capsids are broadly classified according to their structure.ome viruses are enveloped, meaning that the capsid is coated with a lipid membrane known as the viral envelope. The envelope is got by the capsid from an intracellular membrane in the virus' host; such as the inner nuclear membrane, the golgi membrane, or the cell's outer membrane.