Why is salt used in DNA extraction?
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Shampoo or dishwasher soap helps to dissolve the cell membrane, which is a lipid bilayer. Sodium chloride helps to remove proteins that are bound to the DNA. It also helps to keep the proteins dissolved in the aqueous layer so they don't precipitate in the alcohol along with the DNA.
2023-06-03 16:03:40
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Harper Kim
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Shampoo or dishwasher soap helps to dissolve the cell membrane, which is a lipid bilayer. Sodium chloride helps to remove proteins that are bound to the DNA. It also helps to keep the proteins dissolved in the aqueous layer so they don't precipitate in the alcohol along with the DNA.