20-yeast-ecoli December 4, 2012 496 × 658 Lab Contamination!!! 60x magnification of yeast and unknown contaminant in 20% D2O. Like this:Like Loading... Share this:Click to email this to a friend (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window)Like this:Like Loading...