Gram-positive bacteria are bacteria with thick cell walls. In a Gram stain test, these organisms yield a positive result. The test, which involves a chemical dye, stains the bacterium's cell wall purple. Gram-negative bacteria, on the other hand, don't hold the dye.
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Answer:
Gram-positive bacteria are bacteria with thick cell walls. In a Gram stain test, these organisms yield a positive result. The test, which involves a chemical dye, stains the bacterium's cell wall purple. Gram-negative bacteria, on the other hand, don't hold the dye.