the quantity of target molecules is easily determined by directly counting the fluorescent plaques in a Petri dish. The innovative feature of this strategy is that T7 phages are assembled with ...

"For you," the bartender says, "no charge." So goes the humor in "Petri Dish Circus," a collection of kid-friendly, science-savvy skits by Active Cultures Theatre. It's less circus than variety ...

These containers are typically shallow cylinders: a classic example is a petri dish ... surface coverage of the dish," Prof Shen said. "This results in higher cell count, and thus in more samples ...