Chapter 21 22-Medical Virology Flashcards
1
Q
Viruses are
A
The smallest infectious agents
2
Q
Viruses infect
A
Most forms of life ( plants, animals, humans)
3
Q
Characteristics of viruses
A
*metabolically inert
* Inert filterable agents
* Obligate intracellular parasites
* small organisms ranged from 10nm to 400nm
*Genome can be either DNA or RNA
4
Q
Virions
A
The whole infectious unit
5
Q
Nucliec acid or genome
A
Is encased by protein shells that may be surrounded by lipids
6
Q
Metabolically inert
A
On entry ,the genome is transcribed into mRNA, which directs the replication of new viruses .
7
Q
Which of the following is a common process in all types of viruses
A. mRNA production
B. Glycoprotein synthesis
A
mRNA production
