What are the 3 shapes of a virus?
Enveloped, helical, polyhedral
The three shapes of a virus are:
1. Spherical or icosahedral shape: In this form, the virus has a spherical structure with 20 equilateral triangles arranged around a central point, forming a 20-sided shape known as an icosahedron. Examples of viruses with this shape include adenovirus, herpes simplex virus, and poliovirus.
2. Helical shape: In this form, the virus has a long, cylindrical shape, resembling a helix or coil. The nucleic acid (either RNA or DNA) of the virus is coiled inside this cylinder. An example of a virus with this shape is the tobacco mosaic virus.
3. Complex shape: In this form, the virus has a complex shape that does not fit into either of the two categories mentioned above. Examples of viruses with this shape include bacteriophages, which are viruses that infect bacteria and have a head-like structure attached to a tail-like structure.
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