Protein Purification
Gel-filtration chromatography separates on the basis of

size and shape using porous beads packed in a column
size using porous beads packed in a column
None of these
shape using porous beads packed in a column

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Protein Purification
In ion-exchange chromatography

proteins are separated on the basis of their net charge
proteins are separated on the basis of their shape
either (b) or (c)
proteins are separated on the basis of their size

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