객관식
What are prions?
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- 1. Introduction to Microbiology3h 27m
- Introduction to Microbiology18m
- Introduction to Taxonomy26m
- Scientific Naming of Organisms9m
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- Introduction to Eukarya20m
- Acellular Infectious Agents: Viruses, Viroids & Prions19m
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- 16. Microbial Genetics4h 44m
- Introduction to Microbial Genetics11m
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- Introduction to DNA Repair5m
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- Introduction to Conjugation6m
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- Genome Variability21m
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- 17. Biotechnology3h 0m
- 18. Viruses, Viroids, & Prions4h 56m
- Introduction to Viruses20m
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- Prions13m
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- Review of Adaptive Immunity25m
- 21. Principles of Disease6h 57m
- Symbiotic Relationships12m
- The Human Microbiome46m
- Characteristics of Infectious Disease47m
- Stages of Infectious Disease Progression26m
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- Molecular Koch's Postulates11m
- Bacterial Pathogenesis36m
- Introduction to Pathogenic Toxins6m
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- Introduction to Avoiding Host Defense Mechanisms8m
- 1) Hide Within Host Cells5m
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- Viruses Evade the Immune Response27m
- 25. Epidemiology2h 24m
- Introduction to Epidemiology37m
- Introduction to Chain of Infection5m
- Reservoirs of Infection12m
- Disease Transmission4m
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- 26. Applications of the Immune Response2h 9m
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- Superinfections11m
- Drug Interactions: Synergism and Antagonism8m
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- Inhibitors of Cell Wall Synthesis: Beta-lactam & Penicillin36m
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- Inhibitors of Protein Synthesis11m
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- Antifungal Drugs11m
- Antiviral Drugs10m
- Tests to Guide Antimicrobial Use21m
- Antimicrobial Resistance29m
- 29. Microbial Infections - Skin and Eyes46m
- 30. Microbial Infections - Respiratory System1h 23m
- 31. Microbial Infections - Digestive System1h 10m
- 33. Microbial Infections - Nervous System2h 18m
- 34. Microbial Infections - Urogenital System1h 40m
18. Viruses, Viroids, & Prions
Prions
객관식
Viroids and prions are both infectious agents. All of the following are major differences between viroids and prions except which of these answers?
A
Viroids are only known to infect plant cells while prions are known to infect plant and animal cells.
B
Viroids cause the misfolding of the host cell's proteins while prions block the host cell's expression of genes.
C
Viroids are nucleic acid molecules while prions are composed of polypeptide chains.
D
Viroids require the host's RNA polymerase to replicate while prions replicate by transforming the host cell's proteins.
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검증된 단계별 안내1
Understand the nature of viroids and prions: Viroids are small, circular RNA molecules that infect plants, while prions are misfolded proteins that can cause disease in animals.
Identify the replication mechanism: Viroids rely on the host's RNA polymerase for replication, whereas prions propagate by inducing misfolding in normal host proteins.
Examine the composition: Viroids are composed of nucleic acids (RNA), while prions are composed of proteins (polypeptide chains).
Consider the host range: Viroids are known to infect plant cells, whereas prions primarily affect animal cells, particularly the nervous system.
Analyze the given options to find the exception: Compare each statement to the known characteristics of viroids and prions to identify which statement does not represent a major difference between them.
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