Influenza
Poxvirus
CRISPR-Cas9 / Antiviral Therapies
Viral Evolution / Friend, Foe or Enemy
Viral Ecology / Virus as Therapies
100

Influenza virus capsid can be rounded and ______? 

What is filamentous? 
100
What Baltimore class are Poxviruses? Characteristics of genome? 

What is Class 1? What are dsDNA viruses? 

100

The CRISPR complex is composed of what components? 

What is crRNA, tracrRNA and endonuclease protein (cas9)? 

100

Where does viral variation come from? (Name 2)

What are mutations & genetic exchange? 

100
The largest reservoir of unknown biodiversity 
What are viruses? 
200

What is Influenza's Baltimore class? Genome characteristics? 

What is class 5? What is segmented (-) ssRNA? 

200

This poxvirus infectious virion has two envelopes and exits the cell by _____? 

What are extracellular enveloped virus? (EEV) What is exocytosis and then pushed away by actin tails? 

200

In order for anti-CRISPR proteins to work, the cell would need what? 

More phages in the cell. 
200
Emergence of certain sequences because they have replicative advantage under certain selective pressures
What is selection? 
200

The reason why microbes cannot be readily cultivated in the lab 

What is the great plate count anomaly? 

300

Protein that protects viral mRNAs when they are in the endosome, but make it hard for mRNAs to get into the nucleus

What are matrix proteins? (To be exact, M1 protein). 

300

The causative agent of human smallpox 

What is the variola virus? 

300
These lookalikes trick the virus into getting it incorporated into the genome and DNA polymerase. 

What are nucleoside analogs? 

300

The intimate and beneficial relationship between two different species (with one "living" on or in the other) 

What is mutualistic symbiosis? 

300
What is the major flaw of first generation lentivirus vectors? 

If 5' LTR integrates into genome of an infected cell with HIV, the entire engineered transfer vector segment would be packaged into an HIV virion and spread to other CD4 T cells. 

400

Strategy where RdRP grabs and cleaves this from host mRNA and stick it onto viral mRNA 

What is cap-snatching (of 5' caps)? 

400

Name 4 reasons for the eradication of small pox?

What is?

1.) efficient vaccine 

2.) infections always had symptoms (easy to identify cases)

3.) no carriers or latent infections

4.) no animal reservoir 

400

Name a few problems with AZT (Azido-deoxythymidine) and why ACV is better than AZT. 

1. may inhibit mitochondrial DNA polymerase

2. low TI 

3. low half life

4. low compliance

5. high resistance from viruses 

400

Viral recombination in this virus requires coinfection

What are retroviruses

400

Why was 1999-2009 a decade of failure for viral therapies? 

Who is Jessie Gelsinger? - Shock after Adv treatment 

What is 1/4 of people in retroviral therapy for SCID developing leukemia? 

500

Exit mechanism where the cell can stay alive and produce more Influenza virions. 

What is budding? 

500

Smallpox vaccination used to be done with a 2 pronged needle dipped into vaccine solution and then punctured into the arm. What is this needle called?

What is a bifurcated needle? 

500

How does CRISPR-cas9 serve as a bacterial defense against viruses? 

What is? 

Answer should include something like:

Viral genomes placed into CRISPR array locus. The CRISPR-cas9 complexes cuts up any phage that it recognizes. 

500

The alerting of neighboring cells that there is an infection nearby

What is interferon signaling? 

500

Name 1 success from using viral therapy. 

Possible answers:

1.) Leber's congenital amaurosis (blindness) - RPE65 gene with AAV delivery to the retina 

2.) Epidermolysis bullosa - Laminin 332/LamB3 gene; retroviral delivery to skin stem cells 

3.) Spinal muscle atrophy - gene SMN1; AAV deliver to neurons 

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