Safranin dye is used as the counterstain in ________ stain(s).
A) the Gram
B) the endospore
C) the acid-fast
D) the flagellar
E) both the Gram and the endospore

Question

Quizplus · Accepted Answer

Safranin is commonly used as a counterstain in both the Gram staining and the endospore staining procedures. In Gram staining, it provides a pink or red color to Gram-negative bacteria after the primary stain (crystal violet) and the mordant (iodine) have been washed away with a decolorizer. In endospore staining, it stains the cell bodies of bacteria that have endospores, making the endospores stand out as unstained or differently stained structures within the stained bacterial cells.

Safranin Dye Is Used as the Counterstain in ________ Stain(s)