Question

which statement best describes the purpose of the t - streaking technique? a) to boost bacterial growth on the agar surface b) to decrease the concentration of bacterial cells on the agar surface c) to reduce the risk of contamination on the agar surface d) to grow 3 different strains of bacteria on each sector

Explanation:

The T - streaking technique is a method of streaking bacteria on an agar plate to obtain isolated colonies. By streaking in a T - pattern, the concentration of bacterial cells is decreased across the agar surface, allowing for the separation and isolation of individual bacteria. This is not about boosting growth, reducing contamination directly in that sense, or growing multiple strains in each sector. It's mainly about dilution of cell concentration for isolation.

Answer:

b) To decrease the concentration of bacterial cells on the agar surface