When viewed under a microscope,gram-positive bacteria

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Gram-positive bacteria appear purple when viewed under a microscope due to their thick peptidoglycan layer that retains the crystal violet stain used in the gram staining procedure. Pink or red color would be observed in gram-negative bacteria. Motility cannot be determined under a microscope by gram staining. And bacteria, in general, cannot sing America the Beautiful as they lack vocal cords.

When Viewed Under a Microscope,gram-Positive Bacteria