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What is gram positive strain?

Updated: 8/11/2023
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Wiki User

12y ago

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Gram-positive bacterium are those that are stained dark blue or violet by Gram Staining. This is in contrast to Gram-Negative Bacterium, which cannot retain the crystal violet stain, instead taking up the counter-stain and appearing red or pink. Gram-positive organisms are able to retain the crystal violet stain because of the high amount of peptidoglycan in the cell wall. Gram-positive cell walls typically lack the outer membrane found in Gram-negative bacteria.

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15y ago
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9y ago

Gram staining is used to differentiate bacteria. Some bacteria are gram-positive; these bacteria take up and maintain the violet stain. Gram-negative bacteria do not retain the purple color. Usually, a counter stain is used to color the gram-negative bacteria pink to increase visibility.

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12y ago

Bacteria which stain blue ,violet or purple during Gram staining are called Gram positive Bacteria .Strain means a variety of Bacteria .

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Q: What is gram positive strain?
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