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10 Cards in this Set
- Front
- Back
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The infectious nature of the virus was the first demonstrated by? |
Adolf Mayer in the tobacco mosaic virus Page 65, A&P 12th edition |
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What was the first defined case of tobacco mosaic virus? |
First defined in cases of yellow fever as a filterable particles causing human disease Page 65 |
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Do viruses have a cellular organisation? |
No Page 65 |
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What is the range in size of viruses? |
20- 300 nm Page 65 |
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Virus is made of one type of nuclear castle either DNA or RNA but never both
True False
Page 65 |
True
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Viruses are _________ intracellular parasites |
Obligate Page 65 |
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Viruses multiply by? |
Viruses multiply by a complex process and not by binary fission Page 65 |
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What is a virion? |
The extracellular infectious virus particle is called a virion Page 65 |
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What is the largest virus and smallest virus and mention its measure? |
Poxvirus- 300nm (largest virus) Parvovirus - 20nm (smallest virus) Page 66 |
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What is capsid? |
Virion consists of nucleic acid surrounded by protein coat called capsid. Page 66 |
