Viruses
The viruses in an attenuated vaccine

continue to replicate
have no genome
are usually larger than bacteria
is altered with chemicals

ANSWER DOWNLOAD EXAMIANS APP

Viruses
Which of the following statements is not true of viruses?

All viruses have either DNA or RNA as their genetic material
All viruses are obligatory intracellular parasites
Viruses have been successfully grown in pure cultures in test tubes
Viruses probably arose from small fragments of cellular chromosomes

ANSWER DOWNLOAD EXAMIANS APP