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DNA the Easy Way

DNA the Easy Way

This demonstration can be used to help learners visualize DNA by lysing (breaking open) bacterial cells on a slide and ��_stringing up��� the DNA with a toothpick in less than one minute. This technique can also be used to study bacteria because only Gram-negative bacteria lyse in 3% KOH; Gram-positive bacteria do not. The technique is equivalent to the Gram-stain reaction, but does not require a microscope or potentially messy stains....

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