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Page 1: Viral Anatomy Envelope Forms from host membrane Forms from host membrane Viral genome includes genes for surface proteins Viral genome includes genes
Page 2: Viral Anatomy Envelope Forms from host membrane Forms from host membrane Viral genome includes genes for surface proteins Viral genome includes genes

Viral Anatomy

Page 3: Viral Anatomy Envelope Forms from host membrane Forms from host membrane Viral genome includes genes for surface proteins Viral genome includes genes

Viral AnatomyEnvelope

Forms from host membrane Viral genome includes genes

for surface proteins

Page 4: Viral Anatomy Envelope Forms from host membrane Forms from host membrane Viral genome includes genes for surface proteins Viral genome includes genes

Reproductive Cycles

Budding

http://highered.mcgraw-hill.com/sites/0072556781/student_view0/chapter17/animation_quiz_2.html
Page 5: Viral Anatomy Envelope Forms from host membrane Forms from host membrane Viral genome includes genes for surface proteins Viral genome includes genes

HIV (retrovirus)

http://highered.mcgraw-hill.com/sites/0072556781/student_view0/chapter18/animation_quiz_3.html
Page 6: Viral Anatomy Envelope Forms from host membrane Forms from host membrane Viral genome includes genes for surface proteins Viral genome includes genes
Page 7: Viral Anatomy Envelope Forms from host membrane Forms from host membrane Viral genome includes genes for surface proteins Viral genome includes genes

TreatmentVaccines

Virus unable to replicate in host

Antiviral Drugs Inhibit nucleic acid

synthesis Inhibit capsid

synthesis

http://www.youtube.com/watch?v=jJwGNPRmyTI
Page 8: Viral Anatomy Envelope Forms from host membrane Forms from host membrane Viral genome includes genes for surface proteins Viral genome includes genes

Viral EmergenceMutation from existing viruses

Influenza

Page 9: Viral Anatomy Envelope Forms from host membrane Forms from host membrane Viral genome includes genes for surface proteins Viral genome includes genes

Viral EmergenceInterspecific infection

Hantavirus from rodents

http://www.youtube.com/watch?v=QymvUoPHmas
Page 10: Viral Anatomy Envelope Forms from host membrane Forms from host membrane Viral genome includes genes for surface proteins Viral genome includes genes

Viral EmergenceSpread from formerly isolated location - Ebola

Page 11: Viral Anatomy Envelope Forms from host membrane Forms from host membrane Viral genome includes genes for surface proteins Viral genome includes genes
Page 12: Viral Anatomy Envelope Forms from host membrane Forms from host membrane Viral genome includes genes for surface proteins Viral genome includes genes

Subviral ParticlesViroids Infectious RNA disrupts metabolism in plants

Prions Misfolded proteins misfold normal proteins in

animals

Page 13: Viral Anatomy Envelope Forms from host membrane Forms from host membrane Viral genome includes genes for surface proteins Viral genome includes genes

Review Questions1.What materials are found in every virus?2.How do viroids and prions vary from

virions?3.What are effective ways to combat

retroviruses?4.How might new viruses emerge?


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