Three bacterial strains were plated on a set of selective media plates/ Plate A contained tryptopan … Show more Three bacterial strains were plated on a set of selective media plates/ Plate A contained tryptopan Plate B contained amplicillin Strain 1 grew on both plates Strain 2 did not grow on any plate Strain 3 grew on plate 1 What are the possible phenotypes of the strains? Please answer the question throughly to get points.. there are just way too many BS answers out there. • Show less