Viruses

Question 1

What are features of a Naked Virus?

Answer 1

1. Outer protein shelled called a capsid
2. RNA of DNA genome that is either single or double stranded

Question 2

What are features of** Enveloped Viruses**?

Answer 2

1. All the same as a Naked Virus
2. Have an outer membrane called thr Envelope made out of a phosphalipid bilayer with embedded proteins

Question 3

What are the most basic virus shapes?

Answer 3

1. Icosahedral (almost spherical)
2. Helical (rod shaped)

Question 4

Where did viruses come from?

Answer 4

The probably originated independently multiple times during evolution and possibly via different mechanisms

Question 5

What is the simplified viral life cycle?

Answer 5

1. Attatchement
2. Penetration
3. Synthesis
4. Assembly
5. Release

Question 6

**What a T4 Phage classification?

Answer 6

dsDNA(+/-)

Question 7

What is SARS COV-2 classified as?

Answer 7

ssRNA(+)

Question 8

How do we classify Influenza?

Answer 8

ssRNA(-)

Question 9

What are Bacteriophages?

Answer 9

Double stranded linear DNA viruses with no envelope that have a complex capsid structure and are called “Bacteria eaters”

Question 10

What is the difference between Lytic and Temperate Phages?

Answer 10

Lytic viruses kill the host while Temperate phages replicate without killing the host

Question 11

What is the Lytic Bacteriophages’ Cycle?

A.K.A. T4 Phage Cycle

Answer 11

1. Attatchement
2. Injection, Degredation, and Inactivation
3. Synthesis
4. Self-Assembly
5. Lysis

Question 12

What is Early Gene Phase about?

Answer 12

Shutting down the host cell transcription and triggering the next phase

Question 13

What is the Middle Phase about?

Answer 13

Making viral and phage genomes and triggering the next phase

Question 14

What is the Late Phase about?

Answer 14

Assembling new virons and killing the host cell