Chapter 23: Virus taxonomy Flashcards Preview

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Flashcards in Chapter 23: Virus taxonomy Deck (11):
1

What at the DNA viruses?

Herpes
Hepadna
Adeno
Papova
Parvo
Pox

2

What are the RNA viruses?

Toga
Corona
Retro
Picorna
Calici
Reo
Flavi
Orthomyxo
Paramyxo
Rhadbo
Bunya
Arena
Filo

3

What are the DS viruses

Herpes
Hepadna
Pox
Reo

4

What are the positive stranded RNA viruses?

Picorna
Calici
Toga
Flavi
Corona
Retro

5

What are the negative stranded RNA viruses?

Bunya
Orthomyxo
Paramyxo
Rhabdo
Arena
Filo

6

Where do most DNA viruses perform transcription and translation?

In the host cell nucleus

7

Where do most RNA viruses perform transcription, translation, and replication?

In the host cytoplasm

8

What are the three parts of DNA viral transcription?

Immediate early
early and late
Immediate early and early produce products that aid in further transcription and replication of gene products
Late occurs after replication has started and leads to the production of the proteins of the viral capsid

9

What is the difference between positive and negative RNA strands in virus gene production?

Positive act as mRNA and begin translation immediately.
Negative act as templates and produce a corresponding positive strand before translation.

10

What sets Retro viruses replication apart from other RNA viruses?

The strands of RNA work as a backbone that uses reverse transcriptase to produce a strand of DNA to insert into the hosts genome.

11

What enzyme is needed by negative RNA for replication?

virion RNA polyermase