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Questions and Answers
During which step does the biosynthesis of viral components occur?
During which step does the biosynthesis of viral components occur?
When does the attachment or adsorption of the virus take place in the replication process?
When does the attachment or adsorption of the virus take place in the replication process?
At which stage does the penetration of the virus occur?
At which stage does the penetration of the virus occur?
What is the study of viruses called?
What is the study of viruses called?
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What is the size range of viruses?
What is the size range of viruses?
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What does the capsid of a virus do?
What does the capsid of a virus do?
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What is an enveloped virus?
What is an enveloped virus?
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What is the role of viruses' nucleoproteins?
What is the role of viruses' nucleoproteins?
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Study Notes
Viral Replication and Structure
- Biosynthesis of Viral Components: Occurs during the replication phase, where the virus hijacks the host's cellular machinery to produce viral proteins and RNA or DNA components.
- Attachment (Adsorption): Takes place at the very beginning of the viral replication process when the virus binds to specific receptors on the host cell's surface.
- Penetration: The stage in which the virus enters the host cell, occurring after attachment, typically through mechanisms like fusion or endocytosis.
Virology and Virus Structure
- Study of Viruses: Known as virology, a branch of microbiology focused on the properties and effects of viruses.
- Size Range of Viruses: Generally vary from 20 to 300 nanometers in diameter, making them smaller than most bacteria and eukaryotic cells.
- Capsid Function: The capsid is a protein shell that protects the viral genetic material and aids in the infectivity of the virus by facilitating attachment and penetration into host cells.
Viral Types and Components
- Enveloped Virus: A type of virus that has a lipid membrane surrounding its capsid, derived from the host cell membrane, which helps in evading the immune response.
- Role of Nucleoproteins: Nucleoproteins stabilize and protect viral RNA or DNA and play crucial roles in the assembly and release of new viral particles within the host.
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Description
Test your knowledge about the 5 steps involved in the replication or multiplication of viruses, including attachment, penetration, biosynthesis of viral components, maturation, and release of newly developed viruses.
