What usual first step in the identification of a bacterial species is like a litmus test in that the results are identified by colors (blue/purple for positive and pink/red for negative)?
Gram staining Gram-staining Gram-stain Gram's stain Gram indeterminant Gram indeterminate Gram's method Gram stain Gram status Gram Staining Gram-categorization Gram-indeterminate Gram variable Gram-variable Gram Stain
gram status gram s method gram indeterminant gram variable gram stain gram indeterminate gram staining gram categorization gram s stain
gram staining
WikipediaEntity
Gram staining