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Viral diseases of plants have been known for several centuries
Viral diseases of plants have been known for several centuries
True
Dutch artists of the 17th century often depicted infected tulip flowers in their artwork
Dutch artists of the 17th century often depicted infected tulip flowers in their artwork
True
Some Dutch flower growers knew how to breed striped tulip flowers from ordinary bulbs
Some Dutch flower growers knew how to breed striped tulip flowers from ordinary bulbs
True
Adolf Mayer concluded that the causative agent of tobacco mosaic is a bacterium
Adolf Mayer concluded that the causative agent of tobacco mosaic is a bacterium
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D. I. Ivanovsky proved the existence of a new type of pathogen called a virus in 1886
D. I. Ivanovsky proved the existence of a new type of pathogen called a virus in 1886
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The discovery of the virus as a new type of pathogen was a significant step in the study of diseases
The discovery of the virus as a new type of pathogen was a significant step in the study of diseases
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Did Ivanovsky's doctoral dissertation on 'Mosaic tobacco disease' lead to the establishment of the scientific discipline of virology?
Did Ivanovsky's doctoral dissertation on 'Mosaic tobacco disease' lead to the establishment of the scientific discipline of virology?
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Electron microscopy in the 1930s allowed for the detailed study of the structure of virions, such as the rod-shaped particles of tobacco mosaic virus obtained in a crystalline state.
Electron microscopy in the 1930s allowed for the detailed study of the structure of virions, such as the rod-shaped particles of tobacco mosaic virus obtained in a crystalline state.
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Girer and Schram proved the ability of purified viral nucleic acid to cause viral infection using the example of tobacco mosaic virus RNA.
Girer and Schram proved the ability of purified viral nucleic acid to cause viral infection using the example of tobacco mosaic virus RNA.
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The virologists of the USSR conducted in-depth theoretical studies and developed effective measures to combat bacterial diseases.
The virologists of the USSR conducted in-depth theoretical studies and developed effective measures to combat bacterial diseases.
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Virology is currently one of the main biological sciences, with its beginning associated with the discovery of the tobacco mosaic virus and the study of bacterial viruses and viral diseases of animals.
Virology is currently one of the main biological sciences, with its beginning associated with the discovery of the tobacco mosaic virus and the study of bacterial viruses and viral diseases of animals.
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Real viruses, characterized by their ability to pass through bacterial filters, were initially referred to as ultraviruses or filtering viruses.
Real viruses, characterized by their ability to pass through bacterial filters, were initially referred to as ultraviruses or filtering viruses.
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Viruses can grow on artificial nutrient media.
Viruses can grow on artificial nutrient media.
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Viruses consist of either RNA or DNA, surrounded by a protein shell.
Viruses consist of either RNA or DNA, surrounded by a protein shell.
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The genome of viruses is represented only by protein.
The genome of viruses is represented only by protein.
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Zoopathogenic viruses, phytopathogenic viruses, bacteriophages, and cyanophages are different types of viruses.
Zoopathogenic viruses, phytopathogenic viruses, bacteriophages, and cyanophages are different types of viruses.
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Viruses are considered to be living organisms by most scientists.
Viruses are considered to be living organisms by most scientists.
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Viruses do not show the properties of life when outside of a cell.
Viruses do not show the properties of life when outside of a cell.
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Viruses can only reproduce within the cells of susceptible organisms.
Viruses can only reproduce within the cells of susceptible organisms.
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Environmental conditions have no direct effect on viruses.
Environmental conditions have no direct effect on viruses.
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Study Notes
Discovery of Virology and Foundations of Virological Research
- D.I. Ivanovsky's doctoral dissertation on "Mosaic tobacco disease" revealed key properties of the tobacco mosaic pathogen such as filterability through bacterial filters, infectivity, inability to grow on artificial nutrient media and the existence of a new class of microorganisms.
- Ivanovsky discovered viruses, which led to the establishment of the scientific discipline of virology.
- Martin Beyerink, in 1898, based on Ivanovsky's data, concluded that an unknown infectious agent causes tobacco mosaic, passing through a porcelain filter and diffusing into agar gel.
- Electron microscopy in the 1930s allowed for the detailed study of the structure of virions, such as the rod-shaped particles of tobacco mosaic virus obtained in a crystalline state.
- Girer and Schram proved the ability of purified viral nucleic acid to cause viral infection using the example of tobacco mosaic virus RNA.
- The discovery of bacterial viruses (bacteriophages) by Tuort and D Errel was a significant development in virology.
- The formation of virology as an independent science was driven by serious virological research in scientific centers of many countries, including the USSR.
- In the USSR, phytovirusological laboratories were established in the 1930s under the leadership of prominent scientists.
- The virologists of the USSR conducted in-depth theoretical studies and developed effective measures to combat viral diseases.
- Virology is currently one of the main biological sciences, with its beginning associated with the discovery of the tobacco mosaic virus and the study of bacterial viruses and viral diseases of animals.
- The term "virus" has been known for a long time, initially used by the ancient Greeks and later adopted by Louis Pasteur to denote pathogens of infectious diseases.
- Real viruses, characterized by their ability to pass through bacterial filters, were initially referred to as ultraviruses or filtering viruses.
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Description
Explore the groundbreaking discoveries and foundations of virological research, from the identification of the tobacco mosaic virus to the development of virology as an independent science. This quiz traces the historical milestones and key figures in the emergence of virology as a significant biological discipline.
