Answer to Question #65986 in Microbiology for tom

Question

Describe the use of lawn and pour plates and consider why you might choose one of these methods over the other ?

Answer 1

The goal for each method is to dilute out the colonies to a point where it will be possible to isolate individual colonies.

Using a streak-method for the spread plate method, a tester will be able to have decreasing densities of colonies where as the pour-plate method will be more homogeneous. The pour-plate method also grows
differently since some colonies will be stuck in the middle of the agar.