Created by
Paul A. Gulig, Ph.D.
Department of Molecular Genetics and Microbiology
with assistance from
David Brumbaugh
1. What is the first thing you are going to do with your cultures?
C. Test for antibiotic sensitivity
No, this is premature since the samples contain numerous bacteria that probably exhibit different antibiotic senstivities and resistances. You need single, isolated colonies that yield pure cultures of bacteria before you can begin performing most tests. There are some exceptions to this rule.