Question

When an agar plate is streaked correctly, what does the final result represent?

A) A contaminated sample
B) A pure culture of bacteria
C) A mold colony
D) A negative test

Answer 1

When an agar plate is streaked correctly, the final result represents a pure culture of bacteria.

Step-by-step explanation:

When an agar plate is streaked correctly, the final result represents a pure culture of bacteria. The streak plate method dilutes individual cells by spreading them over the surface of an agar plate, resulting in colonies. Each colony represents the descendants of a single bacterial cell, thus achieving a pure culture with only one type of bacteria.