Viral replication and taxonomy Flashcards
differentiate + and - RNA viruses
+ means the RNA is like mRNA and is immediately translated by hosts ribosomes
- means the RNA have to be transcribed to + (they need RNA dependent RNA polymerase)
What are the only viruses with double stranded RNA
reoviridae
what is unique about retroviruses
need reverse transcriptase to convert RNA into DNA
then incorporated into host genome
what is the general structure of DNA viruses
+ and negative strands
- is the strand used for making mRNA
+ strand is ignored
Which DNA virus has a single strand
parvovirus
what are the two shapes of capsids
icosahedral and helical
which type of structure are RNA viruses
helical
What are the DNA viruses
HHAPPPy Herpes Hepadna Adeno Papova Parvo Pox
where do most DNA viruses replicate? what are the exceptions
in the nucleus
poxviridae replicates in cytoplasm
What are the DNA viruses that have envelopes
Herpes Hepadna and Pox
What are the DNA viruses that are naked
PApova, Adenoa PArvo
PAP- “naked women”
what are the nonenveloped RNA viruses
Picorna, Calici and Reoviridae
What are the icosohedral RNA viruses
reoviruses, picorna, toga, flavi and calici
Which RNA viruses replicate in nucleus
retroviruses and orthomyxoviruses
RNA + standed viruses
The CALCIfied emperor PICO is wearing his CROWN and TODA eating FLAVorful grapes form a RETRO bowl
Calici, Pico, Cornoa, Toga, Flaci and Retro
