date:Mar 03, 2017
ed the bacteria Mycobacterium smegmatis, a cousin of the bacteria that causes tuberculosis. The scientists grew the bacteria until they formed colonies, and then exposed the colonies to low doses of antibiotics that killed the bacteria slowly. Mutant colonies arose after that exposure.
Individual mutated bacteria carried single mutations in different components of the ribosome, where genes are transcribed by RNA into proteins. The mutations caused large scale changes in the bacterias resistant