Viruses 2 Flashcards
What are the classifications of viruses?
What are the DNA viruses?
What are the properties of the parovirus?
Requires cells undergoing DNA synthesis to replicate
What are the properties of a Papovirus?
Stimulates cell growth and DNA synthesis
What are the properties of Hepadnavirus?
Stimulates cell growth, cell makes RNA intermediate, encodes a reverse transcriptase
What are the properties of the adenovirus?
Stimulates cellular DNA synthesis and encodes its own polymerase
What are the properties of the herpesvirus?
Stimulates cell growth, encodes its own polymerase and enzymes to provide deoxyribonucleotides for DNA synthesis, establishes latent infection in host
What are the properties of Poxvirus?
Encodes its own polymerases and enzymes to provide deoxyribonucleotides for DNA synthesis, replication machinery, and transcription machinery in the cytoplasm
What are the RNA viruses?
What are the properties of RNA viruses?
What are the properties of group 1 viruses?
What is an example of group 1 viruses?
Herpes
What are the group 2 viral properties?
Give an example of a group II virus
Parvovirus
Describe the genomes of group III, IV, and V viruses
Explain viral replication of Group III viruses
Give an example of a Group 3 virus
Rotavirus
Explain the genome replication of group IV viruses
Explain genome replication of group V viruses
What are the examples of group V viruses
Rabies virus and influenza virus
Explain group VI genome replication -retrovirus
Give an explanation of group VII viral replication
Give an explanation of group VII genome replication
Give an explain please of a group VII virus
Hepatitis B
Explain the replication of hepatitis D
What are the interactions of viruses inside cells?
What is complementation?
What is antigenic drift?
Antigenic drift- evolution due to small changes in the genome sequence within a define strain which usually occurs at a slower rate compared to antigenic shift e.g. influenza virus, rhinovirus
What is antigenic shift?
Antigenic shift- usually occurs in segmented viruses, notably influenza virus, resulting in exchange (reassortment) of RNA segments between two different influenza viruses that subsequently gives rise to a highly pathogenic (reassorted) strain virus
What is phenotypic mixing?
What are the families of RNA viruses?
