Question

Which bacteria appears purple-
violet colour after staining
a.Gram-positive
b.Gram-negative
c.Both Gram positive and Gram
negative
d.Neither Gram positive nor Gram
negative
​

Answer 1

Answer:

( Gram positive)

bacteria have a distinctive purple appearance when observed under a light microscope following Gram staining. This is due to retention of the purple crystal violet stain in the thick peptidoglycan layer of the cell wall.