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Questions and Answers
Which of the following requires a helper virus for infection?
Which of the following requires a helper virus for infection?
- Virusoid (correct)
- Bacteriophage
- Prion
- Viroid
What type of molecule primarily makes up a prion?
What type of molecule primarily makes up a prion?
- RNA
- Lipid
- Protein (correct)
- DNA
What is a key characteristic of prions that distinguishes them from viruses?
What is a key characteristic of prions that distinguishes them from viruses?
- They are easily destroyed by autoclaving.
- They contain nucleic acid.
- They consist of only protein. (correct)
- They only infect plants.
Which human disease is associated with a virusoid?
Which human disease is associated with a virusoid?
Which of the following pathogens primarily infects plants?
Which of the following pathogens primarily infects plants?
What is a common name for the diseases caused by prions?
What is a common name for the diseases caused by prions?
Which pathogen does not need a helper virus to infect a host?
Which pathogen does not need a helper virus to infect a host?
What process is ineffective in eliminating prions?
What process is ineffective in eliminating prions?
Which of the following is an example of a prion disease?
Which of the following is an example of a prion disease?
Which of the following requires simultaneous infection with hepatitis B?
Which of the following requires simultaneous infection with hepatitis B?
What are prions?
What are prions?
What is the main type of disease caused by prions?
What is the main type of disease caused by prions?
Which of the following is a characteristic of viroids?
Which of the following is a characteristic of viroids?
What term describes normal animal proteins that become infectious after misfolding?
What term describes normal animal proteins that become infectious after misfolding?
Which of these is NOT a characteristic of prions?
Which of these is NOT a characteristic of prions?
A patient with Hepatitis D must also be infected with which other disease?
A patient with Hepatitis D must also be infected with which other disease?
Which of the following is a plant virus?
Which of the following is a plant virus?
What do viroids and virusoids infect?
What do viroids and virusoids infect?
When do normal animal proteins become infectious?
When do normal animal proteins become infectious?
What is another name for mad cow disease?
What is another name for mad cow disease?
What causes transmissible spongiform encephalopathies?
What causes transmissible spongiform encephalopathies?
Which of the following does not have nucleic acid?
Which of the following does not have nucleic acid?
What part of the body do transmissible spongiform encephalopathies affect?
What part of the body do transmissible spongiform encephalopathies affect?
What is the role of a helper virus?
What is the role of a helper virus?
Which disease is transmitted by prions?
Which disease is transmitted by prions?
What is the Delta agent?
What is the Delta agent?
Which term describes infectious particles made of protein?
Which term describes infectious particles made of protein?
What type of diseases are kuru and mad cow disease?
What type of diseases are kuru and mad cow disease?
Which factor is irrelevant when determining if a disease is caused by a prion?
Which factor is irrelevant when determining if a disease is caused by a prion?
What must a patient be simultaneously infected with to contract Hepatitis D?
What must a patient be simultaneously infected with to contract Hepatitis D?
What is the primary effect of transmissible spongiform encephalopathies on the brain?
What is the primary effect of transmissible spongiform encephalopathies on the brain?
Which molecule is affected in prion diseases?
Which molecule is affected in prion diseases?
What must virusoids rely on for infections?
What must virusoids rely on for infections?
Which particle is composed solely of abnormally folded proteins?
Which particle is composed solely of abnormally folded proteins?
What makes prions resistant to autoclaving?
What makes prions resistant to autoclaving?
Which characteristic is unique to viroids?
Which characteristic is unique to viroids?
What is required for a Prion to be infectious?
What is required for a Prion to be infectious?
What term describes an infectious agent that requires simultaneous co-infection of Hepatitis B?
What term describes an infectious agent that requires simultaneous co-infection of Hepatitis B?
Flashcards
Viroids
Viroids
Infectious agents that cause plant diseases and do not require a helper virus.
Virusoids
Virusoids
RNA sequences that require a helper virus to infect a host cell.
Hepatitis D virus
Hepatitis D virus
The Delta agent (virus) which is actually one of the plant viruses (viroids) that can infect humans; patient has to be simultaneously infected with hepatitis B.
Prions
Prions
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Do prions lack nucleic acid?
Do prions lack nucleic acid?
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Transmissible Spongiform Encephalopathies
Transmissible Spongiform Encephalopathies
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Study Notes
- Viroids do not need a helper virus
- Viroids cause plant diseases
- Virusoids need a helper virus
- Virusoids are generally associated with plant infection
- Hepatitis D virus, also called Delta agent, is a virus that is actually one of the plant viruses (viroids) which can infect humans
- To be infected with Hepatitis D, the patient has to be simultaneously infected with hepatitis B
- Prions are normal animal proteins that become infectious particles when abnormally folded
- Prions lack nucleic acid
- Prions are not affected by autoclaving
- Diseases caused by prions are called transmissible spongiform encephalopathies, examples are mad cow disease and kuru
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