Viruses

Question 1

What do Virus genomes consist of?

Answer 1

DNA or RNA, classified as DNA, RNA, or retro-virus.

Question 2

What is the outside of a virus?

Answer 2

Protein Sheath or Capsid, animal viruses might also have glycoproteins, virally encoded proteins, and host cell lipids.

Question 3

What are the 4 types of viruses?

Answer 3

Helical, Icosahedral, Binal, or polymorphic

Question 4

Why can Virus not reproduce on their own?

Answer 4

No Ribosomes or Enzymes

Question 5

What is an Icosahedron Virus

Answer 5

20 triangular face, Animal Virus, forms a shell with max internal cap.

Question 6

What is a Bacteriophage?

Answer 6

Star Wars bacteria virus

Question 7

Viral Genomes

Answer 7

Single Strand RNA, with very high mutation rates, with DNA virus usually being double-stranded.

Question 8

What is the Virus reproduction cycle.

Answer 8

1. Attachment/Absorption
   2.. Penetration/Injection
2. Synthesis
3. Assembly,
4. Release
5. Eclipse Period

Question 9

What is the Lytic Cycle?

Answer 9

Viruses infect and rapidly kill the cell.

Question 10

What is the Lysogenic Cycle

Answer 10

Virus hides and is reproduced in the DNA, only takes over with stress or stain on the cell.

Question 11

Phage Conversion

Answer 11

The Lysogens bacterium is altered by a prophage.

Question 12

HIV

Answer 12

Human Immunodeficiency Virus might have the same receptor as SP, CCR5. Targets healthy CD4+/T cells, distorting the immune response.

Question 13

What glycoprotein des HIV use?

Answer 13

gp120

Question 14

How is HIV currently being treated?

Answer 14

Durg cocktail, since it mutates a lot and has lots of different versions.

Question 15

What are the four areas HIV medication treats?

Answer 15

Reverse Transcriptive inhibitors, Protease, Viral entry, integrase

Question 16

What is Influenza?

Answer 16

3 types A is dangers to humans and B, C are mild.

Question 17

What does flu do that makes it so hard to vaccinate.

Answer 17

Undergoes frequent genetic change in the H and N partials and it’s genetic martial.

Question 18

Where do strains often ordinate?

Answer 18

Ducks, Chickens, Pigs, often coming from Asia where these things live in close proximity.

Question 19

What is an Emerging Virus?

Answer 19

Viruses that change their host range

Question 20

What are two common emerging viruses?

Answer 20

Ebloa, SARS

Question 21

How are Viruses and Cancer Related?

Answer 21

Viruses can cause growth-altering properties to human cells.

Question 22

What are Pirons?

Answer 22

Proteinaceous Infectious Particles- Mad Cow Disease caused by a misfolded PrP^SC protein

Question 23

What are Viroid’s?

Answer 23

Cause Plant Disease, replicate autonomously and have 3-D info, Not RNA