The M3P study turns a new twist on water testing. Apart from identifying the chemical levels found in the water at sample sites, it filters the water down to get at the microorganisms that have been collected. Then their DNA is isolated and sequenced. This provides a catalog of all the microorganisms in that sample.
The next step is to replicate the DNA that's been collected to do further testing. That DNA is then put into a host cell or cloned in order to conduct controlled experiments in a lab setting to see how these cloned specimens react to differing conditions.