Virus Genetics Flashcards
1
Q
simple genomes
A
retroviruses. genes in a linear arrangement on one RNA strand with only a single promoter
2
Q
complex genomes
A
adenoviruses, herpesviruses, poxviruses, genes on both strands of DNA, often overlapping, and each with its own promoter
3
Q
genes are eukaryotic, compromising
A
enhancing/promoter region, ribosomal entry site, open reading frame
4
Q
viruses compress genetic info by
A
overlapping reading frames, translational frameshifts, splices, polyproteins
5
Q
conditional lethal mutations
A
only allow a virus to grow under certain conditions, allows live vaccines to be made
6
Q
antigenic variants
A
produce new strains spontaneously over time, ex. antigenic drift of influenza viruses
