You Inspect the Test Dish

On the glass top of the dish, there's a piece of tape with "Gentamicin" scrawled across it. Inside, you see someone stuck a paper disk in the exact center of the agar. The disk seems to have been soaked in something. You can see white growth blossoming all over the dish, right up to the paper circle.

You turn the dish over. On the bottom there's a label that reads:

From a time stamp, you learn the dish was prepared several hours ago.

Continue in the back room

An Access Excellence Science Mystery sponsored by Genentech, Inc.