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

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

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

Fig. 13.16a 4. What are the small blue dots? Mastadenovirus SEM

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

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

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?

Fig. 13.6 8. Plaques What are plaques?

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

Fig. 13.11 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.

Fig. 13.12 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

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. 13.15 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.

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

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

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

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

What is this form of ‘release’ called? Fig. 13.20a 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?

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’.