1. What morphology is this virus?
Fig. 13.2a 1. b) c) d)
What morphology is this virus?

2. What is the morphology of this virus?
Fig. 13.3a 2. c) b) d) e)
What is the morphology of this virus?

3. What are the structures projecting from the virus? Influenzavirus 3.
Fig. 13.3b 3.
What are the
structures
projecting
from the virus?
Influenzavirus
TEM
50 nm

4. Fig a 4.
What are the small blue dots?
Mastadenovirus
SEM

5. What is the morphology of this virus?
Fig. 13.4a 5. c) b) d)
What is the morphology of this virus?

6. Fig.13.16b 6. ) a) b)
Herpesvirus
TEM

7. What type of virus is this?
Fig. 13.5a
65 nm 7. b) c)
TEM
Sheath d) e)
Baseplate
What type of virus is this?

8. Fig. 13.6 8.
Plaques
What are plaques?

9. What process does this figure represent?9.
Amniotic
cavity
Chorioallantoic
membrane
Shell
Chorioallantoic
membrane
inoculation
Air
sac
Amniotic
inoculation
Yolk
sac
Allantoic
inoculation
Shell
membrane
Yolk sac
inoculation
Albumin
Allantoic
cavity

10. Fig
10.
Bacterial
cell wall
Bacterial
chromosome 1
Tail 2 3
What is this process? Label the steps and the structures. 4 5
What is this process?
Write the steps and label all of the structures.

11. Fig
11.
Answer the questions, label all of the structures, and write the steps.
What type of viral life cycle is this?
What type of viral life cycle is this? 1 5
Bacterial
chromosome
Many cell
divisions 4A 2 4B
What is viral DNA called in this life cycle? OR
Answer the questions, label the structures, and write the steps. 3A 3B

12. Key Concept 12. a) b) c) What are these? d) e) Fig. 13.15
Papovavirus
12. 7 1
DNA
Host cell
Capsid a) 2 6 b) c)
What are these? d) e) 5
Fig Foundation Fig. Replication of a DNA-Containing Animal Virus 4 3
Answer the questions, label all of the structures, and write the steps.
Key Concept
Write the sequence of events in the replication of all animal
Viruses. Label all of the structures.

13. Fig. 13.17a + strand RNA-containing virus
Answer the questions, fill in the blanks,
label all of the structures, and write the steps.
At the moment of attachment,
the virus is called a ________.
+ strand or – strand? 1
Nucleus
RNA
Host cell
Cytoplasm 2 5 4 3
__________transcribed
from + viral genome.
What happens here?
Capsid
protein
Viral
genome
(+ strand
RNA)
Viral
protein
+ strand
________ is transcribed
from the – strand.
ssRNA;
+ or sense strand;
Picornaviridae

14. Fig. 13.17b - strand RNA-containing virus
14.
+ strand or – strand? 1
Capsid
Nucleus
RNA
Host cell
Cytoplasm 2 5 4 3
What happens here?
Viral
genome
(RNA)
Viral
protein
Answer the questions, fill in the blanks, label all of the structures, and write the steps.
______________must first be
transcribed from the _____ viral genome
before proteins can be synthesized.
Capsid
protein
_______are
incorporated
into capsid
Additional ___ strands are
transcribed from mRNA.
ssRNA; – or
antisense strand;
Rhabdoviridae

15. Fig. 13.17c Double -stranded RNA-containing virus
15.
What type of RNA? 1
Capsid
Nucleus
RNA
Host cell
Cytoplasm 2 5 4 3
What happens here?
Viral
genome
(RNA)
Viral
protein
Answer the questions, fill in the blanks, label all of the structures, and write the steps.
RNA polymerase initiates production_____
. The ______ and ___ strands form the
dsRNA that is incorporated as new viral genome.
______ is produced inside the
capsid and released into the
cytoplasm of the host.
Capsid proteins and _________________polymerase
dsRNA; + or sense
strand with – or antisense
strand; Reoviridae

16. Fig. 13.19 Multiplication of a retrovirus
Reverse
transcriptase
Capsid
Envelope
16.
What type of genetic material?
Virus
Two identical
stands of RNA. Are they + or – strands, or both?
Host cell 1 7
DNA of one
of the host cell’s
chromosomes 2
Answer the questions, fill in the blanks,
label all of the structures, and write the steps. c) a) b) 6 3
Viral
proteins
Identical strands
of RNA d) 5
RNA 4

17. What is this form of ‘release’ called?
Fig a
17.
What is this structure? b)
Answer the questions and
label all of the structures. c) c) b)
What is this form of ‘release’ called?

18. Clinical Focus (From MMWR)
Fill in the blanks, label a-d, and answer the question
18.
Avian virus H7N7
Transmitted to_____
Virus H3N2
Transmitted to_____
Bird
Pig
Human
Wild bird infected with
Virus H7N7
Human infected
with H3N2
Pig infected
with H1N1 c) d) b) a)
Avian virus
Pig virus
Human virus
Pig infected
with __________
How is this illustration an
example of ‘antigenic shift’.