Which of the following is considered to be a differential staining procedure?

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Differential staining procedures are those which differentiate between different types of cells or structures based on differences in their chemical and physical properties. Gram stain is a differential staining procedure that distinguishes between gram-positive and gram-negative bacteria based on the differences in the cell wall structure. Acid-fast stain is another differential staining procedure that distinguishes between acid-fast and non-acid-fast bacteria based on the presence of mycolic acid in the cell wall. Leifson's flagella stain is not a differential staining procedure as it is used to visualize bacterial flagella.

Which of the Following Is Considered to Be a Differential