Chapter 5/8: Viral Replication Assembly and Release

Question 1

What class of viruses include dsDNA viruses like papillomavirus?

Answer 1

Class I

Question 2

What class of viruses include +ssRNA viruses like SARs virus?

Answer 2

Class IV

Question 3

What class of viruses include -ssRNA viruses like rabies virus?

Answer 3

Class V

Question 4

What class of viruses include retroviruses like HIV?

Answer 4

Class VI

Question 5

What type of host is a class I virus found in?

Answer 5

Animal host

Question 6

What does a class I virus use to replicate its genome in the host?

Answer 6

DNA polymerase

Question 7

Where are new class I virions formed?

Answer 7

Host Nucleus

Question 8

What type of host is a class IV virus found in?

Answer 8

Animal host

Question 9

What does a class IV virus require?

Answer 9

RNA-dependent RNA polymerase

Question 10

What is the RNA-dependent RNA polymerase encoded on in a class IV virus?

Answer 10

+ssRNA

Question 11

What is translated immediately into viral proteins including the polymerase, capsid, and packaging proteins in a class IV virus?

Answer 11

+ssRNA

Question 12

What is used as a template for viral genome replication in a class IV virus?

Answer 12

-ssRNA

Question 13

Where does genome replication occur in a class IV virus host?

Answer 13

Cytoplasm

Question 14

What type of host is a class V virus found in?

Answer 14

Animal host

Question 15

What type of virus class requires an RNA-dependent RNA polymerase which must be packaged along with the genome?

Answer 15

Class V

Question 16

What must -ssRNA be converted to before translation of viral capsid and packaging proteins can occur?

Answer 16

+ssRNA

Question 17

What is used for template in genome replication in class V viruses?

Answer 17

+ssRNA

Question 18

Where does genome replication occur in a class V virus host?

Answer 18

Cytoplasm

Question 19

What type of ssRNA is contained in class VI viruses?

Answer 19

+ssRNA

Question 20

What is required to create dsDNA in class VI viruses?

Answer 20

Reverse transcriptase

Question 21

What is used to integrate dsDNA into host genome in class VI viruses?

Answer 21

Integrase

Question 22

What three components are carried in a retrovirus capsid?

Answer 22

Reverse transcriptase, Integrase, HIV-1 protease

Question 23

What term is used to describe when the virus genome is integrated into the host genome?

Answer 23

Provirus

Question 24

What type of bacteriophage infections occur when phages replicate inside host cells then lyse the host cells to release new virions?

Answer 24

Lytic (virulent) infections

Question 25

What type of bacteriophage infections occur when phages integrate their genome into the host cell genome and are replicated each time the host cell undergoes binary fission?

Answer 25

Lysogenic (temperate) infections

Question 26

What term describes when phages integrate their genome into the host cell genome?

Answer 26

Prophage

Question 27

What is the name for the host cell in Lysogenic infections?

Answer 27

Lysogen

Question 28

What is an example of a lysogenic phage?

Answer 28

Lambda phage

Question 29

What is an example of a lytic phage?

Answer 29

T4 phage

Question 30

What type of viruses have capsid proteins interact with packaging sequences on viral genome to coalesce around nucleic acid?

Answer 30

Helical viruses

Question 31

What two types of viruses have empty capsids that partially form then have viral genomes inserted into them?

Answer 31

Isosahedral, Bacteriophage

Question 32

How do naked viruses almost always exit a cell?

Answer 32

Lysis

Question 33

How do plant viruses move from cell to cell within one plant?

Answer 33

Cytoplasmic connections

Question 34

How do enveloped viruses exit from host cells?

Answer 34

Budding

Question 35

What is the name for viral proteins?

Answer 35

Peplomers