M Prep | MCAT 2015 Question of the Day - Prep, Practice Questions, and More!

Q:	You want to obtain a spontaneous mutant for Ampicillin resistance in a sample of E. coli. Of the strategies listed below, which is most likely to yield a result the fastest?

Plate the E. coli on medium with 1 g/mL Ampicillin

Plate the E. coli on medium with 1 μg/L Ampicillin

Plate the E coli on a linear gradient medium from a concentration of 1μg/L to a 1 g/mL.

None; the rise of spontaneous mutants is random and cannot be controlled by any of the methods listed