Respuesta :
Gram stain is a type of differential stain.
Differential staining is a type of staining that is used to distinguish different types of microorganisms by differentiating their characteristics or composition. Therefore, gram stain is considered a type of differential staining since it uses two types of stains to distinguish gram-positive organisms from gram-negative organisms. These stains are crystal violet and safranin stains.
In contrast to differential staining, simple staining is used just to study the features of a particular bacteria and cannot be used for distinguishing purposes.
Negative staining also cannot be used for differentiating purposes as it can just be used to analyze the morphological features of cells that cannot be stained easily.
Another factor that differentiates gram stain from other staining techniques is that it uses two stains while other techniques only use one type of stain.
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