Viruses
The viruses in an attenuated vaccine

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

ANSWER DOWNLOAD EXAMIANS APP

Viruses
The function of a viral capsid is

providing binding sites that enable the virus to attach to specific receptor sites on the host cell
serving as a vehicle of transmission from one host to another
protection against the viral genome from physical and enzymatic destruction
All of these

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP