Question

multiple choice question
what type of staining involves only one dye?

simple
special
differential
acidic

Explanation:

Simple staining is a microbiology technique that uses only a single dye to color all cells or structures uniformly, which matches the question's description. Differential staining uses multiple dyes to distinguish cell types, special staining targets specific structures (may use multiple reagents), and acidic refers to the charge of a dye, not the number of dyes used.

Answer:

Simple