The choice of technique depends on the type of information needed. The information is routinely used to help identify microorganisms, and it also helps determine appropriate therapeutic treatment. B the Gram stain. C the endospore stain. D the flagella stain.
B can help determine whether a bacterium has a capsule.
C is conducted using methylene blue or some other basic dye. D is used only on viruses during electron microscopy. B identify different components within a single cell. C Both A and B are correct. Neither A nor B are correct.