What Can Be Counted as Representing Individual Infectious Virions from a Phage

Question

What can be counted as representing individual infectious virions from a phage suspension?
A) plaques
B) viruses
C) genomes
D) proteomes
E) burst size

Accepted Answer

Plaques are distinct areas of cell lysis caused by individual viral particles or virions. Each plaque represents the presence of an infectious virion in the phage suspension.