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.
Influenza viruses bind to RBC to form hemagglutination (diagnostic) Four morphological types of viruses based on the structure of the capsid and envelope geometry. Helical viruses -- nucleic acid is surrounded by capsids which form long hollow rods (TMV, bacteriophage M13). Polyhedral virsues -- capsids forming multiple (many) sides.