Question

A polyhedral virus is
(a) TMV
(b) Polio Virus
(c) Adenovirus
(d) Vaccinia Virus
(e) Mumps Virus

Answer 1

Hint: These viruses infect the lining of your eyes, airways and lungs, intestines, urinary tract, and nervous system. These are also common causes of fever, coughs, sore throats, diarrhea, and pink eyes.

Correct step by step answer:
Adenovirus is an example of a polyhedral virus. These are non- enveloped viruses surrounded by a many- sided shell or capsid with an icosahedral nucleocapsid. This surrounds the double- stranded DNA genome. Polyhedral viruses consist of nucleic acid surrounded by a polyhedral or many- sided shell or capsid and usually in the form of an icosahedron.

Additional Information:
- Enveloped viruses consist of nucleic acid surrounded by either a helical or polyhedral core.
- A virus can be classified into icosahedral, enveloped, and complex or helical based on the structure of a virus.
- Tobacco mosaic virus is usually spread from plant to plant via 'mechanical' wounds caused by contaminated hands, clothing, or tools such as pruning shears and hoes. This is because TMV occurs in very high concentrations in most plant cells.
- Poliovirus is a disabling and life- threatening disease caused by the poliovirus. The virus spreads from person to person and can infect a person's spinal cord, causing paralysis
- Vaccinia virus is a large, complex, enveloped virus belonging to the poxvirus family. It has a linear, double- stranded DNA genome Vaccinia is the cowpox virus which is used to vaccinate against smallpox.
- Mumps is a viral disease caused by the mumps virus. Initial signs and symptoms often include fever, muscle pain, headache, poor appetite, and feeling generally unwell. This is then usually followed by painful swelling of one or both parotid salivary glands.
So, the correct answer is '(c) Adenovirus'.

Note:
- Adenovirus is a non- enveloped virus surrounded by a many- sided shell.
- Adenovirus surrounds the double- stranded DNA genome.
- TMV = Tobacco Mosaic Virus
- VACV or VV = Vaccinia Virus