A mixture of S. aureus and the enteric bacteria E. coli was placed onto the skin of the fingertips of a volunteer. The volunteer immediately touched one of their inoculated fingertips to nutrient agar plate #1 and then waited 30 minutes and touched a different inoculated finger to nutrient agar plate #2. After incubating the plates overnight, what pattern of growth would you expect to see on the plates?

A mixture of S. aureus and the enteric bacteria E. coli was placed onto the skin of the fingertips of a volunteer. The volunteer immediately touched one of their inoculated fingertips to nutrient agar plate #1 and then waited 30 minutes and touched a different inoculated finger to nutrient agar plate #2. After incubating the plates overnight, what pattern of growth would you expect to see on the plates?

A mixture of S. aureus and the enteric bacteria E. coli was placed onto the skin of the fingertips of a volunteer. The volunteer immediately touched one of their inoculated fingertips to nutrient agar plate #1 and then waited 30 minutes and touched a different inoculated finger to nutrient agar plate #2. After incubating the plates overnight, what pattern of growth would you expect to see on the plates? 










A. Both E. coli and S. aureus grew on both plates.
B. Plate #1 grew both, while plate #2 grew only S. aureus.
C. Plate #1 grew both, while plate #2 grew only E. coli.
D. Plate #1 grew only S. aureus, while plate #2 grew both.
E. Plate #1 grew only E. coli, while plate #2 grew both.














Answer: B