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Ch 17
DNA viruses
| Question | Answer |
|---|---|
| What are the 6 families of DNA viruses that we will be looking at | |
| What characteristics will we be looking for? or how can the families be grouped by | Form of DNA, presence of envelope, and capsid type |
| What are the four types of DNA viruses | |
| ds linear DNA with envelope. what are the shapes and species of virus | complex capsid: poxviridae icosahedral capsid: herpesviridae |
| ds circular DNA, envelope presence? shape? species? | nonenvelope: icosahedral capsid: Papillomaviridae |
| ss linear DNA, envelope presence? shape? species? | non-enveloped: icosahedral capsid: parvoviridae |
| ss and ds circular DNA, envelope presence? shape? species? | complementary strand has two loose ends, so considered linear enveloped, icosahedral capsid: Hepadnaviridae |
| ds linear DNA without envelope, shape? species? | icosahedral capsid: Adenoviridae |
| What disease does poxyviridae cause? draw the shape | smallpox |
| What is synonymous with smallpox | variola major (deadly) and variola minor (less infectious), infects internal organs causing fever, malaise, and delirium, moves via the blood to the skin causing lesions |
| Herpesviridae causes what type of disease? Draw. | Human herpes viruses HHV's, unique because has unique area called teguments that contain different virial proteins. 8 total herpes viruses |
| HHV1 | oral herpes primarily, and ocular herpes, most humans are lifetime carriers and are usually asymptomatic. cause mouth blisters |
| HHV2 | genital herpes primarily, more active, and neonatal herpes |
| HHV3 | varicella-zoster virus. varicella is chickenpox. varicella hides in nerve cells and reemerge as zoster or shingles |
| Neonatal herpes | infection that occurs during birthing process |
| Adenoviridae, draw | has long spike proteins, ds dna, no envelope. attachement proteins on capsid itself. associated with common cold, may cause conjunctivitus |
| papillomaviridae | benign wart causing viruses, has 20 sides, double stranded circular DNA, genital warts associates with increased risk of cells because can cause dysregulated cell growth |
| Hepadnaviridae is also associated with what term | Hepatitis B viruses (attacks liver) |
| What is the structure of Hepadnaviridae? | can be circular, or long and extended |
| What is the sign or symptoms of Hepadnaviridae virus | liver is responsible for filtration, if attacked can lead to jaundice |
| Parvoviruses? what is the structure | |
| What disease does parvovirus cause | erythema infectiosum, associated to childhood disease |
Created by:
Acrob89
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