VIRUSES AND ITS TYPES
TYPES OF VIRUS STRUCTURES: The structure of a virus varies greatly depending on its function. From a simple outer covering made up of proteins, to a complex formation consisting of a head and tail, there are four different types of viruses. Each one, though extremely microscopic, has its own unique features, which help in its functioning. The Different Types of Virus Structures are: 1. Helical Virus 2. Envelope Virus 3. Icosahedral Virus 4. Complex Virus HELICAL VIRUS: This type of virus has a capsid made up of a single type of protein sample stacked around an axis to form a type of helix structure. This structure may have a hollow center, making it look like a tube. This arrangement leads to this type of virion having a rod-like structure. The nucleic acid is arranged in the central cavity. They are usually 15-19 nm wide and range in length from 300-500 nm long, depending on the nucleic acid. An example for such virus is the Tobacco Mosaic Virus (TMV)....
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