Midterm 2 - Notes 4 (Part 3)

Question 1

What are 5 types of DNA viruses?

Answer 1

1. Adenoviridae
2. Poxvirdiae
3. Herpesviridae
4. Papovaviridae
5. Hepadnaviridae

Question 2

Adenoviridae (5)

Answer 2

1. Pathogenic
2. dsDNA
3. Nonenveloped
4. Respiratory infections in humans
5. Tumors in animals

Question 3

Poxviridae (4)

Answer 3

1. Pathogenic
2. dsDNA
3. Enveloped
4. Cause skin lesions
   - vaccinia and small pox virus (orthopoxvirus)

Question 4

Herpesviridae (HHV) (3)

Answer 4

1. Pathogenic
2. dsDNA
3. Enveloped

Question 5

What are the 8 strains of HHV?

Answer 5

• HHV1 & HHV2 = simplexvirus
• -> causes colds
• HHV3 = varicellovirus
• -> causes chicken pox
• HHV4 = lymphocryptovirus
• -> causes monoucleasis
• HHV5 = cytomegalovirus
• HHV6 & HHV7 = roseolovirus
• HHV8 = rhadinovirus
• -> causes kaposi’s sarrcoma

Question 6

Papovaviridae (3)

Answer 6

1. Pathogenic
2. dsDNA
3. Nonenveloped

Question 7

What is an example of papovaviridae?

Answer 7

Papillomavirus

• pathogenic
• causes warts
• can transfer cells and cause cancer

Question 8

Hepadnaviridae (4)

Answer 8

1. Pathogenic
2. Class 7
3. dsDNA
4. Enveloped

Question 9

What is an example of hepadnaviridae?

Answer 9

Hepatitis B virus

- uses reverse transcriptase to make DNA from RNA

Question 10

In an RNA virus where do viruses multiply?

Answer 10

In the host cell’s cytoplasm using RNA-dependent RNA polymerase

Question 11

What are the 2 types of strands in RNA viruses?

Answer 11

1. ssRNA: + (sense) strand
2. ssRNA: - (antisense) strand
3. dsRNA: double stranded RNA

Question 12

ssRNA: + (sense) strand

Answer 12

Viral RNA serves as mRNA for protein synthesis

Question 13

ssRNA: - (antisense) strand

Answer 13

Virla RNA is transcribed to a + strand to serve as mRNA for protein synthesis

Question 14

What are 5 examples of RNA viruses?

Answer 14

1. Picornaviridae
2. Togaviridae
3. Rhabdoviridae
4. Reoviridae

Question 15

Picornaviridae (3)

Answer 15

1. Pathogenic
2. ssRNA + (sense) strand
3. Nonenveloped

Question 16

What are 3 examples of picornaviridae?

Answer 16

1. Enterovirus
2. Rhinovirus
3. Hepatits A virus

Question 17

Enterovirus

Answer 17

Poliovirus and coxsackievirus

Question 18

Rhinovirus

Answer 18

Common cold

Question 19

Togaviridae (3)

Answer 19

1. Pathogenic
2. ssRNA + (sense) strand
3. Enveloped

Question 20

What are 2 examples of togaviridae?

Answer 20

1. Alphavirus

2. Rubivirus

Question 21

Alphavirus

Answer 21

Transmitted arthropods

- includes chikungunya

Question 22

Rubivirus

Answer 22

Rubella

Question 23

Rhabdoviridae (2)

Answer 23

1. Pathogenic

2. ssRNA - (antisense) strand

Question 24

What is an example of rhabdoviridae

Answer 24

Lyssauvirus

Question 25

Lyssauvirus

Answer 25

Rabies

Question 26

Reoviridae (2)

Answer 26

1. dsRNA | 2. Nonenveloped

Question 27

What are 2 examples of reoviridae?

Answer 27

1. Reovirus | 2. Rotavirus

Question 28

Reovirus

Answer 28

Respiratory enteric orphan

Question 29

Rotavirus (3)

Answer 29

1. Pathogenic 2. Mild respiratory infections 3. Gastroenteritis

Question 30

What produce DNA?

Answer 30

ssRNA | - use reverse transcriptase to produce DNA from the viral genome