1.) You are asked to prepare a gram stain from a mixture of grampositive and gram negative bacteria during lab. What would happenif you remembered all steps.... except to decolorize – what colorwould the Gram (+) and Gram (-) be? except to add safranin – whatcolor would the Gram (+) and Gram (-) be?
2.) The organism Yersinia pestis causes the plague, which causeda pandemic in Europe. What test reults would you expect to observeif samples from a plague patient were analyzed using the gramstain, the endospore stain, the capsule stain, and the acid-faststain? Include the expected shape of the cell, the color Y. pestiscells should turn for each stain, and if the result is positive ornegative.
