SDS is an anionic detergent used in the SDS-PAGE technique for protein biochemistry. SDS works by?

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Giving all proteins a positive charge so they can migrate in the gel towards the negative electrode.

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Helping the protein to travel faster than the molecular marker in the gel so the protein can be visualized.

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Linearizing the native protein by denaturing it and giving the protein a negative charge so it can migrate through the gel.

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Preserving the structure of the native protein so they can be visualized on the gel.

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